Home / 81,541.67-112,528.28-45,730.91

Finding the Fourth Proportional to 81,541.67, 112,528.28 and 45,730.91

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Solution

The fourth proportional to 81,541.67, 112,528.28 and 45,730.91 is: 63,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,541.67 : 112,528.28 = 45,730.91 : x
  2. Step 2: Convert to fraction form
    81,541.67/112,528.28 = 45,730.91/x
  3. Step 3: Cross multiply
    81,541.67x = 112,528.28 × 45,730.91
  4. Step 4: Simplify right side
    81,541.67x = 5,146,021,040.78
  5. Step 5: Solve for x
    x = 5,146,021,040.78/81,541.67
  6. Step 6: Final answer
    x = 63,109.10

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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.