Home / 87,862.40-121,250.34-47,576.64

Finding the Fourth Proportional to 87,862.40, 121,250.34 and 47,576.64

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Solution

The fourth proportional to 87,862.40, 121,250.34 and 47,576.64 is: 65,655.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.40 : 121,250.34 = 47,576.64 : x
  2. Step 2: Convert to fraction form
    87,862.40/121,250.34 = 47,576.64/x
  3. Step 3: Cross multiply
    87,862.40x = 121,250.34 × 47,576.64
  4. Step 4: Simplify right side
    87,862.40x = 5,768,683,776.06
  5. Step 5: Solve for x
    x = 5,768,683,776.06/87,862.40
  6. Step 6: Final answer
    x = 65,655.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.