Home / 84,620.05-126,897.27-45,155.63

Finding the Fourth Proportional to 84,620.05, 126,897.27 and 45,155.63

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Solution

The fourth proportional to 84,620.05, 126,897.27 and 45,155.63 is: 67,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,620.05 : 126,897.27 = 45,155.63 : x
  2. Step 2: Convert to fraction form
    84,620.05/126,897.27 = 45,155.63/x
  3. Step 3: Cross multiply
    84,620.05x = 126,897.27 × 45,155.63
  4. Step 4: Simplify right side
    84,620.05x = 5,730,126,320.04
  5. Step 5: Solve for x
    x = 5,730,126,320.04/84,620.05
  6. Step 6: Final answer
    x = 67,715.94

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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.