Home / 77,040.75-106,324.88-43,508.91

Finding the Fourth Proportional to 77,040.75, 106,324.88 and 43,508.91

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Solution

The fourth proportional to 77,040.75, 106,324.88 and 43,508.91 is: 60,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,040.75 : 106,324.88 = 43,508.91 : x
  2. Step 2: Convert to fraction form
    77,040.75/106,324.88 = 43,508.91/x
  3. Step 3: Cross multiply
    77,040.75x = 106,324.88 × 43,508.91
  4. Step 4: Simplify right side
    77,040.75x = 4,626,079,417.14
  5. Step 5: Solve for x
    x = 4,626,079,417.14/77,040.75
  6. Step 6: Final answer
    x = 60,047.18

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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.