Home / 74,937.12-103,412-40,944.86

Finding the Fourth Proportional to 74,937.12, 103,412 and 40,944.86

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Solution

The fourth proportional to 74,937.12, 103,412 and 40,944.86 is: 56,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,937.12 : 103,412 = 40,944.86 : x
  2. Step 2: Convert to fraction form
    74,937.12/103,412 = 40,944.86/x
  3. Step 3: Cross multiply
    74,937.12x = 103,412 × 40,944.86
  4. Step 4: Simplify right side
    74,937.12x = 4,234,189,862.32
  5. Step 5: Solve for x
    x = 4,234,189,862.32/74,937.12
  6. Step 6: Final answer
    x = 56,503.24

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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.