Home / 40,690.08-56,101.68-31,142.16

Finding the Fourth Proportional to 40,690.08, 56,101.68 and 31,142.16

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Solution

The fourth proportional to 40,690.08, 56,101.68 and 31,142.16 is: 42,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.08 : 56,101.68 = 31,142.16 : x
  2. Step 2: Convert to fraction form
    40,690.08/56,101.68 = 31,142.16/x
  3. Step 3: Cross multiply
    40,690.08x = 56,101.68 × 31,142.16
  4. Step 4: Simplify right side
    40,690.08x = 1,747,127,494.83
  5. Step 5: Solve for x
    x = 1,747,127,494.83/40,690.08
  6. Step 6: Final answer
    x = 42,937.43

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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.