Home / 87,666.79-131,501.94-28,502.32

Finding the Fourth Proportional to 87,666.79, 131,501.94 and 28,502.32

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Solution

The fourth proportional to 87,666.79, 131,501.94 and 28,502.32 is: 42,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,666.79 : 131,501.94 = 28,502.32 : x
  2. Step 2: Convert to fraction form
    87,666.79/131,501.94 = 28,502.32/x
  3. Step 3: Cross multiply
    87,666.79x = 131,501.94 × 28,502.32
  4. Step 4: Simplify right side
    87,666.79x = 3,748,110,374.50
  5. Step 5: Solve for x
    x = 3,748,110,374.50/87,666.79
  6. Step 6: Final answer
    x = 42,754.05

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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.