Home / 87,319.64-130,782.53-61,141.25

Finding the Fourth Proportional to 87,319.64, 130,782.53 and 61,141.25

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Solution

The fourth proportional to 87,319.64, 130,782.53 and 61,141.25 is: 91,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,319.64 : 130,782.53 = 61,141.25 : x
  2. Step 2: Convert to fraction form
    87,319.64/130,782.53 = 61,141.25/x
  3. Step 3: Cross multiply
    87,319.64x = 130,782.53 × 61,141.25
  4. Step 4: Simplify right side
    87,319.64x = 7,996,207,842.17
  5. Step 5: Solve for x
    x = 7,996,207,842.17/87,319.64
  6. Step 6: Final answer
    x = 91,573.99

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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.