Home / 72,853.83-100,543.48-40,591.13

Finding the Fourth Proportional to 72,853.83, 100,543.48 and 40,591.13

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Solution

The fourth proportional to 72,853.83, 100,543.48 and 40,591.13 is: 56,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,853.83 : 100,543.48 = 40,591.13 : x
  2. Step 2: Convert to fraction form
    72,853.83/100,543.48 = 40,591.13/x
  3. Step 3: Cross multiply
    72,853.83x = 100,543.48 × 40,591.13
  4. Step 4: Simplify right side
    72,853.83x = 4,081,172,863.14
  5. Step 5: Solve for x
    x = 4,081,172,863.14/72,853.83
  6. Step 6: Final answer
    x = 56,018.65

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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.