Home / 90,491.40-124,888.90-52,260.25

Finding the Fourth Proportional to 90,491.40, 124,888.90 and 52,260.25

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Solution

The fourth proportional to 90,491.40, 124,888.90 and 52,260.25 is: 72,125.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,491.40 : 124,888.90 = 52,260.25 : x
  2. Step 2: Convert to fraction form
    90,491.40/124,888.90 = 52,260.25/x
  3. Step 3: Cross multiply
    90,491.40x = 124,888.90 × 52,260.25
  4. Step 4: Simplify right side
    90,491.40x = 6,526,724,511.78
  5. Step 5: Solve for x
    x = 6,526,724,511.78/90,491.40
  6. Step 6: Final answer
    x = 72,125.36

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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.