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Finding the Fourth Proportional to 69,859.28, 96,402.80 and 38,028.13

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Solution

The fourth proportional to 69,859.28, 96,402.80 and 38,028.13 is: 52,477.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,859.28 : 96,402.80 = 38,028.13 : x
  2. Step 2: Convert to fraction form
    69,859.28/96,402.80 = 38,028.13/x
  3. Step 3: Cross multiply
    69,859.28x = 96,402.80 × 38,028.13
  4. Step 4: Simplify right side
    69,859.28x = 3,666,017,538.61
  5. Step 5: Solve for x
    x = 3,666,017,538.61/69,859.28
  6. Step 6: Final answer
    x = 52,477.17

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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.