Home / 84,507.48-126,780.42-45,043.80

Finding the Fourth Proportional to 84,507.48, 126,780.42 and 45,043.80

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Solution

The fourth proportional to 84,507.48, 126,780.42 and 45,043.80 is: 67,575.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,507.48 : 126,780.42 = 45,043.80 : x
  2. Step 2: Convert to fraction form
    84,507.48/126,780.42 = 45,043.80/x
  3. Step 3: Cross multiply
    84,507.48x = 126,780.42 × 45,043.80
  4. Step 4: Simplify right side
    84,507.48x = 5,710,671,882.40
  5. Step 5: Solve for x
    x = 5,710,671,882.40/84,507.48
  6. Step 6: Final answer
    x = 67,575.93

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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.