Home / 40,723.12-61,062.60-12,631.08

Finding the Fourth Proportional to 40,723.12, 61,062.60 and 12,631.08

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Solution

The fourth proportional to 40,723.12, 61,062.60 and 12,631.08 is: 18,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,723.12 : 61,062.60 = 12,631.08 : x
  2. Step 2: Convert to fraction form
    40,723.12/61,062.60 = 12,631.08/x
  3. Step 3: Cross multiply
    40,723.12x = 61,062.60 × 12,631.08
  4. Step 4: Simplify right side
    40,723.12x = 771,286,585.61
  5. Step 5: Solve for x
    x = 771,286,585.61/40,723.12
  6. Step 6: Final answer
    x = 18,939.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.