Home / 84,401.19-126,423.18-54,730.89

Finding the Fourth Proportional to 84,401.19, 126,423.18 and 54,730.89

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Solution

The fourth proportional to 84,401.19, 126,423.18 and 54,730.89 is: 81,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,401.19 : 126,423.18 = 54,730.89 : x
  2. Step 2: Convert to fraction form
    84,401.19/126,423.18 = 54,730.89/x
  3. Step 3: Cross multiply
    84,401.19x = 126,423.18 × 54,730.89
  4. Step 4: Simplify right side
    84,401.19x = 6,919,253,158.03
  5. Step 5: Solve for x
    x = 6,919,253,158.03/84,401.19
  6. Step 6: Final answer
    x = 81,980.52

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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.