Home / 86,279.30-129,437.35-48,856.90

Finding the Fourth Proportional to 86,279.30, 129,437.35 and 48,856.90

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Solution

The fourth proportional to 86,279.30, 129,437.35 and 48,856.90 is: 73,295.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,279.30 : 129,437.35 = 48,856.90 : x
  2. Step 2: Convert to fraction form
    86,279.30/129,437.35 = 48,856.90/x
  3. Step 3: Cross multiply
    86,279.30x = 129,437.35 × 48,856.90
  4. Step 4: Simplify right side
    86,279.30x = 6,323,907,665.22
  5. Step 5: Solve for x
    x = 6,323,907,665.22/86,279.30
  6. Step 6: Final answer
    x = 73,295.77

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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.