Home / 87,702.64-131,555.58-28,538.08

Finding the Fourth Proportional to 87,702.64, 131,555.58 and 28,538.08

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Solution

The fourth proportional to 87,702.64, 131,555.58 and 28,538.08 is: 42,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,702.64 : 131,555.58 = 28,538.08 : x
  2. Step 2: Convert to fraction form
    87,702.64/131,555.58 = 28,538.08/x
  3. Step 3: Cross multiply
    87,702.64x = 131,555.58 × 28,538.08
  4. Step 4: Simplify right side
    87,702.64x = 3,754,343,666.49
  5. Step 5: Solve for x
    x = 3,754,343,666.49/87,702.64
  6. Step 6: Final answer
    x = 42,807.65

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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.