Home / 81,330.48-112,236.06-45,520.50

Finding the Fourth Proportional to 81,330.48, 112,236.06 and 45,520.50

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Solution

The fourth proportional to 81,330.48, 112,236.06 and 45,520.50 is: 62,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,330.48 : 112,236.06 = 45,520.50 : x
  2. Step 2: Convert to fraction form
    81,330.48/112,236.06 = 45,520.50/x
  3. Step 3: Cross multiply
    81,330.48x = 112,236.06 × 45,520.50
  4. Step 4: Simplify right side
    81,330.48x = 5,109,041,569.23
  5. Step 5: Solve for x
    x = 5,109,041,569.23/81,330.48
  6. Step 6: Final answer
    x = 62,818.29

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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.