Home / 84,146.10-126,182.22-31,518.66

Finding the Fourth Proportional to 84,146.10, 126,182.22 and 31,518.66

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Solution

The fourth proportional to 84,146.10, 126,182.22 and 31,518.66 is: 47,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,146.10 : 126,182.22 = 31,518.66 : x
  2. Step 2: Convert to fraction form
    84,146.10/126,182.22 = 31,518.66/x
  3. Step 3: Cross multiply
    84,146.10x = 126,182.22 × 31,518.66
  4. Step 4: Simplify right side
    84,146.10x = 3,977,094,490.23
  5. Step 5: Solve for x
    x = 3,977,094,490.23/84,146.10
  6. Step 6: Final answer
    x = 47,264.16

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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.