Home / 81,541.30-112,475.20-58,913.54

Finding the Fourth Proportional to 81,541.30, 112,475.20 and 58,913.54

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Solution

The fourth proportional to 81,541.30, 112,475.20 and 58,913.54 is: 81,263.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,541.30 : 112,475.20 = 58,913.54 : x
  2. Step 2: Convert to fraction form
    81,541.30/112,475.20 = 58,913.54/x
  3. Step 3: Cross multiply
    81,541.30x = 112,475.20 × 58,913.54
  4. Step 4: Simplify right side
    81,541.30x = 6,626,312,194.21
  5. Step 5: Solve for x
    x = 6,626,312,194.21/81,541.30
  6. Step 6: Final answer
    x = 81,263.26

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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.