Home / 87,703.16-131,555.96-28,539.16

Finding the Fourth Proportional to 87,703.16, 131,555.96 and 28,539.16

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Solution

The fourth proportional to 87,703.16, 131,555.96 and 28,539.16 is: 42,809.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.16 : 131,555.96 = 28,539.16 : x
  2. Step 2: Convert to fraction form
    87,703.16/131,555.96 = 28,539.16/x
  3. Step 3: Cross multiply
    87,703.16x = 131,555.96 × 28,539.16
  4. Step 4: Simplify right side
    87,703.16x = 3,754,496,591.39
  5. Step 5: Solve for x
    x = 3,754,496,591.39/87,703.16
  6. Step 6: Final answer
    x = 42,809.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.