Home / 87,427.42-130,643.40-65,646.88

Finding the Fourth Proportional to 87,427.42, 130,643.40 and 65,646.88

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Solution

The fourth proportional to 87,427.42, 130,643.40 and 65,646.88 is: 98,096.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,427.42 : 130,643.40 = 65,646.88 : x
  2. Step 2: Convert to fraction form
    87,427.42/130,643.40 = 65,646.88/x
  3. Step 3: Cross multiply
    87,427.42x = 130,643.40 × 65,646.88
  4. Step 4: Simplify right side
    87,427.42x = 8,576,331,602.59
  5. Step 5: Solve for x
    x = 8,576,331,602.59/87,427.42
  6. Step 6: Final answer
    x = 98,096.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.