Home / 86,123.06-129,209.28-36,177.46

Finding the Fourth Proportional to 86,123.06, 129,209.28 and 36,177.46

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Solution

The fourth proportional to 86,123.06, 129,209.28 and 36,177.46 is: 54,276.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.06 : 129,209.28 = 36,177.46 : x
  2. Step 2: Convert to fraction form
    86,123.06/129,209.28 = 36,177.46/x
  3. Step 3: Cross multiply
    86,123.06x = 129,209.28 × 36,177.46
  4. Step 4: Simplify right side
    86,123.06x = 4,674,463,558.83
  5. Step 5: Solve for x
    x = 4,674,463,558.83/86,123.06
  6. Step 6: Final answer
    x = 54,276.56

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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.