Home / 91,990.49-138,005.17-29,656.13

Finding the Fourth Proportional to 91,990.49, 138,005.17 and 29,656.13

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Solution

The fourth proportional to 91,990.49, 138,005.17 and 29,656.13 is: 44,490.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,990.49 : 138,005.17 = 29,656.13 : x
  2. Step 2: Convert to fraction form
    91,990.49/138,005.17 = 29,656.13/x
  3. Step 3: Cross multiply
    91,990.49x = 138,005.17 × 29,656.13
  4. Step 4: Simplify right side
    91,990.49x = 4,092,698,498.03
  5. Step 5: Solve for x
    x = 4,092,698,498.03/91,990.49
  6. Step 6: Final answer
    x = 44,490.45

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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.