Home / 87,031.28-130,583.64-37,122.32

Finding the Fourth Proportional to 87,031.28, 130,583.64 and 37,122.32

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Solution

The fourth proportional to 87,031.28, 130,583.64 and 37,122.32 is: 55,699.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,031.28 : 130,583.64 = 37,122.32 : x
  2. Step 2: Convert to fraction form
    87,031.28/130,583.64 = 37,122.32/x
  3. Step 3: Cross multiply
    87,031.28x = 130,583.64 × 37,122.32
  4. Step 4: Simplify right side
    87,031.28x = 4,847,567,670.84
  5. Step 5: Solve for x
    x = 4,847,567,670.84/87,031.28
  6. Step 6: Final answer
    x = 55,699.14

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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.