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Finding the Fourth Proportional to 74,064.84, 102,103.16 and 52,807.20

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Solution

The fourth proportional to 74,064.84, 102,103.16 and 52,807.20 is: 72,798.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,064.84 : 102,103.16 = 52,807.20 : x
  2. Step 2: Convert to fraction form
    74,064.84/102,103.16 = 52,807.20/x
  3. Step 3: Cross multiply
    74,064.84x = 102,103.16 × 52,807.20
  4. Step 4: Simplify right side
    74,064.84x = 5,391,781,990.75
  5. Step 5: Solve for x
    x = 5,391,781,990.75/74,064.84
  6. Step 6: Final answer
    x = 72,798.13

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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.