Home / 90,145.86-124,427.25-63,294.90

Finding the Fourth Proportional to 90,145.86, 124,427.25 and 63,294.90

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Solution

The fourth proportional to 90,145.86, 124,427.25 and 63,294.90 is: 87,365.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,145.86 : 124,427.25 = 63,294.90 : x
  2. Step 2: Convert to fraction form
    90,145.86/124,427.25 = 63,294.90/x
  3. Step 3: Cross multiply
    90,145.86x = 124,427.25 × 63,294.90
  4. Step 4: Simplify right side
    90,145.86x = 7,875,610,346.03
  5. Step 5: Solve for x
    x = 7,875,610,346.03/90,145.86
  6. Step 6: Final answer
    x = 87,365.19

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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.