Home / 86,902.74-119,875.68-51,086.16

Finding the Fourth Proportional to 86,902.74, 119,875.68 and 51,086.16

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Solution

The fourth proportional to 86,902.74, 119,875.68 and 51,086.16 is: 70,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,902.74 : 119,875.68 = 51,086.16 : x
  2. Step 2: Convert to fraction form
    86,902.74/119,875.68 = 51,086.16/x
  3. Step 3: Cross multiply
    86,902.74x = 119,875.68 × 51,086.16
  4. Step 4: Simplify right side
    86,902.74x = 6,123,988,168.59
  5. Step 5: Solve for x
    x = 6,123,988,168.59/86,902.74
  6. Step 6: Final answer
    x = 70,469.45

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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.