Home / 86,027.40-118,882.08-64,769.76

Finding the Fourth Proportional to 86,027.40, 118,882.08 and 64,769.76

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Solution

The fourth proportional to 86,027.40, 118,882.08 and 64,769.76 is: 89,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,027.40 : 118,882.08 = 64,769.76 : x
  2. Step 2: Convert to fraction form
    86,027.40/118,882.08 = 64,769.76/x
  3. Step 3: Cross multiply
    86,027.40x = 118,882.08 × 64,769.76
  4. Step 4: Simplify right side
    86,027.40x = 7,699,963,789.90
  5. Step 5: Solve for x
    x = 7,699,963,789.90/86,027.40
  6. Step 6: Final answer
    x = 89,505.95

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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.