Home / 90,008.14-124,211.47-49,721.10

Finding the Fourth Proportional to 90,008.14, 124,211.47 and 49,721.10

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Solution

The fourth proportional to 90,008.14, 124,211.47 and 49,721.10 is: 68,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,008.14 : 124,211.47 = 49,721.10 : x
  2. Step 2: Convert to fraction form
    90,008.14/124,211.47 = 49,721.10/x
  3. Step 3: Cross multiply
    90,008.14x = 124,211.47 × 49,721.10
  4. Step 4: Simplify right side
    90,008.14x = 6,175,930,921.02
  5. Step 5: Solve for x
    x = 6,175,930,921.02/90,008.14
  6. Step 6: Final answer
    x = 68,615.25

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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.