Home / 81,367.13-112,293.59-47,386.28

Finding the Fourth Proportional to 81,367.13, 112,293.59 and 47,386.28

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Solution

The fourth proportional to 81,367.13, 112,293.59 and 47,386.28 is: 65,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,367.13 : 112,293.59 = 47,386.28 : x
  2. Step 2: Convert to fraction form
    81,367.13/112,293.59 = 47,386.28/x
  3. Step 3: Cross multiply
    81,367.13x = 112,293.59 × 47,386.28
  4. Step 4: Simplify right side
    81,367.13x = 5,321,175,541.75
  5. Step 5: Solve for x
    x = 5,321,175,541.75/81,367.13
  6. Step 6: Final answer
    x = 65,397.11

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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.