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Finding the Fourth Proportional to 86,417.63, 129,677.48 and 36,494.49

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Solution

The fourth proportional to 86,417.63, 129,677.48 and 36,494.49 is: 54,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,417.63 : 129,677.48 = 36,494.49 : x
  2. Step 2: Convert to fraction form
    86,417.63/129,677.48 = 36,494.49/x
  3. Step 3: Cross multiply
    86,417.63x = 129,677.48 × 36,494.49
  4. Step 4: Simplify right side
    86,417.63x = 4,732,513,314.61
  5. Step 5: Solve for x
    x = 4,732,513,314.61/86,417.63
  6. Step 6: Final answer
    x = 54,763.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.