Home / 74,701.64-103,088.76-42,869.72

Finding the Fourth Proportional to 74,701.64, 103,088.76 and 42,869.72

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Solution

The fourth proportional to 74,701.64, 103,088.76 and 42,869.72 is: 59,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.64 : 103,088.76 = 42,869.72 : x
  2. Step 2: Convert to fraction form
    74,701.64/103,088.76 = 42,869.72/x
  3. Step 3: Cross multiply
    74,701.64x = 103,088.76 × 42,869.72
  4. Step 4: Simplify right side
    74,701.64x = 4,419,386,276.35
  5. Step 5: Solve for x
    x = 4,419,386,276.35/74,701.64
  6. Step 6: Final answer
    x = 59,160.50

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1.5x scale

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.