Home / 84,621.17-126,898.95-45,156.76

Finding the Fourth Proportional to 84,621.17, 126,898.95 and 45,156.76

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Solution

The fourth proportional to 84,621.17, 126,898.95 and 45,156.76 is: 67,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.17 : 126,898.95 = 45,156.76 : x
  2. Step 2: Convert to fraction form
    84,621.17/126,898.95 = 45,156.76/x
  3. Step 3: Cross multiply
    84,621.17x = 126,898.95 × 45,156.76
  4. Step 4: Simplify right side
    84,621.17x = 5,730,345,281.49
  5. Step 5: Solve for x
    x = 5,730,345,281.49/84,621.17
  6. Step 6: Final answer
    x = 67,717.63

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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.