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Finding the Fourth Proportional to 61,533.30, 84,966.40 and 38,908.92

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Solution

The fourth proportional to 61,533.30, 84,966.40 and 38,908.92 is: 53,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,533.30 : 84,966.40 = 38,908.92 : x
  2. Step 2: Convert to fraction form
    61,533.30/84,966.40 = 38,908.92/x
  3. Step 3: Cross multiply
    61,533.30x = 84,966.40 × 38,908.92
  4. Step 4: Simplify right side
    61,533.30x = 3,305,950,860.29
  5. Step 5: Solve for x
    x = 3,305,950,860.29/61,533.30
  6. Step 6: Final answer
    x = 53,726.21

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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.