Home / 74,829.40-112,373.70-72,496.60

Finding the Fourth Proportional to 74,829.40, 112,373.70 and 72,496.60

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Solution

The fourth proportional to 74,829.40, 112,373.70 and 72,496.60 is: 108,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,829.40 : 112,373.70 = 72,496.60 : x
  2. Step 2: Convert to fraction form
    74,829.40/112,373.70 = 72,496.60/x
  3. Step 3: Cross multiply
    74,829.40x = 112,373.70 × 72,496.60
  4. Step 4: Simplify right side
    74,829.40x = 8,146,711,179.42
  5. Step 5: Solve for x
    x = 8,146,711,179.42/74,829.40
  6. Step 6: Final answer
    x = 108,870.46

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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.