Home / 90,377.78-124,702.13-54,567.17

Finding the Fourth Proportional to 90,377.78, 124,702.13 and 54,567.17

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Solution

The fourth proportional to 90,377.78, 124,702.13 and 54,567.17 is: 75,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,377.78 : 124,702.13 = 54,567.17 : x
  2. Step 2: Convert to fraction form
    90,377.78/124,702.13 = 54,567.17/x
  3. Step 3: Cross multiply
    90,377.78x = 124,702.13 × 54,567.17
  4. Step 4: Simplify right side
    90,377.78x = 6,804,642,307.61
  5. Step 5: Solve for x
    x = 6,804,642,307.61/90,377.78
  6. Step 6: Final answer
    x = 75,291.10

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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.