Home / 72,055.16-107,861.28-61,426.34

Finding the Fourth Proportional to 72,055.16, 107,861.28 and 61,426.34

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Solution

The fourth proportional to 72,055.16, 107,861.28 and 61,426.34 is: 91,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,055.16 : 107,861.28 = 61,426.34 : x
  2. Step 2: Convert to fraction form
    72,055.16/107,861.28 = 61,426.34/x
  3. Step 3: Cross multiply
    72,055.16x = 107,861.28 × 61,426.34
  4. Step 4: Simplify right side
    72,055.16x = 6,625,523,658.12
  5. Step 5: Solve for x
    x = 6,625,523,658.12/72,055.16
  6. Step 6: Final answer
    x = 91,950.72

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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.