Home / 81,648.74-112,681.77-45,841.10

Finding the Fourth Proportional to 81,648.74, 112,681.77 and 45,841.10

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Solution

The fourth proportional to 81,648.74, 112,681.77 and 45,841.10 is: 63,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,648.74 : 112,681.77 = 45,841.10 : x
  2. Step 2: Convert to fraction form
    81,648.74/112,681.77 = 45,841.10/x
  3. Step 3: Cross multiply
    81,648.74x = 112,681.77 × 45,841.10
  4. Step 4: Simplify right side
    81,648.74x = 5,165,456,286.75
  5. Step 5: Solve for x
    x = 5,165,456,286.75/81,648.74
  6. Step 6: Final answer
    x = 63,264.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.