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Finding the Fourth Proportional to 74,301.60, 102,344.40 and 60,823.20

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Solution

The fourth proportional to 74,301.60, 102,344.40 and 60,823.20 is: 83,779.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,301.60 : 102,344.40 = 60,823.20 : x
  2. Step 2: Convert to fraction form
    74,301.60/102,344.40 = 60,823.20/x
  3. Step 3: Cross multiply
    74,301.60x = 102,344.40 × 60,823.20
  4. Step 4: Simplify right side
    74,301.60x = 6,224,913,910.08
  5. Step 5: Solve for x
    x = 6,224,913,910.08/74,301.60
  6. Step 6: Final answer
    x = 83,779.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.