Home / 77,543.13-107,013.39-43,549.86

Finding the Fourth Proportional to 77,543.13, 107,013.39 and 43,549.86

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Solution

The fourth proportional to 77,543.13, 107,013.39 and 43,549.86 is: 60,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,543.13 : 107,013.39 = 43,549.86 : x
  2. Step 2: Convert to fraction form
    77,543.13/107,013.39 = 43,549.86/x
  3. Step 3: Cross multiply
    77,543.13x = 107,013.39 × 43,549.86
  4. Step 4: Simplify right side
    77,543.13x = 4,660,418,152.63
  5. Step 5: Solve for x
    x = 4,660,418,152.63/77,543.13
  6. Step 6: Final answer
    x = 60,100.98

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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.