Home / 72,542.29-100,118.13-40,712.93

Finding the Fourth Proportional to 72,542.29, 100,118.13 and 40,712.93

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Solution

The fourth proportional to 72,542.29, 100,118.13 and 40,712.93 is: 56,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,542.29 : 100,118.13 = 40,712.93 : x
  2. Step 2: Convert to fraction form
    72,542.29/100,118.13 = 40,712.93/x
  3. Step 3: Cross multiply
    72,542.29x = 100,118.13 × 40,712.93
  4. Step 4: Simplify right side
    72,542.29x = 4,076,102,418.42
  5. Step 5: Solve for x
    x = 4,076,102,418.42/72,542.29
  6. Step 6: Final answer
    x = 56,189.33

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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.