Home / 53,864.64-74,330.40-29,990.40

Finding the Fourth Proportional to 53,864.64, 74,330.40 and 29,990.40

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Solution

The fourth proportional to 53,864.64, 74,330.40 and 29,990.40 is: 41,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,864.64 : 74,330.40 = 29,990.40 : x
  2. Step 2: Convert to fraction form
    53,864.64/74,330.40 = 29,990.40/x
  3. Step 3: Cross multiply
    53,864.64x = 74,330.40 × 29,990.40
  4. Step 4: Simplify right side
    53,864.64x = 2,229,198,428.16
  5. Step 5: Solve for x
    x = 2,229,198,428.16/53,864.64
  6. Step 6: Final answer
    x = 41,385.19

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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.