Home / 90,038.66-124,105.16-63,853.38

Finding the Fourth Proportional to 90,038.66, 124,105.16 and 63,853.38

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Solution

The fourth proportional to 90,038.66, 124,105.16 and 63,853.38 is: 88,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,038.66 : 124,105.16 = 63,853.38 : x
  2. Step 2: Convert to fraction form
    90,038.66/124,105.16 = 63,853.38/x
  3. Step 3: Cross multiply
    90,038.66x = 124,105.16 × 63,853.38
  4. Step 4: Simplify right side
    90,038.66x = 7,924,534,101.07
  5. Step 5: Solve for x
    x = 7,924,534,101.07/90,038.66
  6. Step 6: Final answer
    x = 88,012.58

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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.