Home / 86,288.52-129,609.88-56,748.36

Finding the Fourth Proportional to 86,288.52, 129,609.88 and 56,748.36

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Solution

The fourth proportional to 86,288.52, 129,609.88 and 56,748.36 is: 85,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,288.52 : 129,609.88 = 56,748.36 : x
  2. Step 2: Convert to fraction form
    86,288.52/129,609.88 = 56,748.36/x
  3. Step 3: Cross multiply
    86,288.52x = 129,609.88 × 56,748.36
  4. Step 4: Simplify right side
    86,288.52x = 7,355,148,129.80
  5. Step 5: Solve for x
    x = 7,355,148,129.80/86,288.52
  6. Step 6: Final answer
    x = 85,239.01

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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.