Home / 86,931.67-130,397.50-47,467.25

Finding the Fourth Proportional to 86,931.67, 130,397.50 and 47,467.25

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Solution

The fourth proportional to 86,931.67, 130,397.50 and 47,467.25 is: 71,200.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931.67 : 130,397.50 = 47,467.25 : x
  2. Step 2: Convert to fraction form
    86,931.67/130,397.50 = 47,467.25/x
  3. Step 3: Cross multiply
    86,931.67x = 130,397.50 × 47,467.25
  4. Step 4: Simplify right side
    86,931.67x = 6,189,611,117.20
  5. Step 5: Solve for x
    x = 6,189,611,117.20/86,931.67
  6. Step 6: Final answer
    x = 71,200.88

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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.