Home / 72,061,628.40-108,047,030.76-61,135,635.60

Finding the Fourth Proportional to 72,061,628.40, 108,047,030.76 and 61,135,635.60

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Solution

The fourth proportional to 72,061,628.40, 108,047,030.76 and 61,135,635.60 is: 91,664,926.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,061,628.40 : 108,047,030.76 = 61,135,635.60 : x
  2. Step 2: Convert to fraction form
    72,061,628.40/108,047,030.76 = 61,135,635.60/x
  3. Step 3: Cross multiply
    72,061,628.40x = 108,047,030.76 × 61,135,635.60
  4. Step 4: Simplify right side
    72,061,628.40x = 6,605,523,900,205,352
  5. Step 5: Solve for x
    x = 6,605,523,900,205,352/72,061,628.40
  6. Step 6: Final answer
    x = 91,664,926.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.