Home / 84,014.20-126,024.81-39,077.71

Finding the Fourth Proportional to 84,014.20, 126,024.81 and 39,077.71

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Solution

The fourth proportional to 84,014.20, 126,024.81 and 39,077.71 is: 58,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,014.20 : 126,024.81 = 39,077.71 : x
  2. Step 2: Convert to fraction form
    84,014.20/126,024.81 = 39,077.71/x
  3. Step 3: Cross multiply
    84,014.20x = 126,024.81 × 39,077.71
  4. Step 4: Simplify right side
    84,014.20x = 4,924,760,977.99
  5. Step 5: Solve for x
    x = 4,924,760,977.99/84,014.20
  6. Step 6: Final answer
    x = 58,618.20

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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.