Home / 56,242.80-77,612.68-30,748.72

Finding the Fourth Proportional to 56,242.80, 77,612.68 and 30,748.72

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Solution

The fourth proportional to 56,242.80, 77,612.68 and 30,748.72 is: 42,431.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,242.80 : 77,612.68 = 30,748.72 : x
  2. Step 2: Convert to fraction form
    56,242.80/77,612.68 = 30,748.72/x
  3. Step 3: Cross multiply
    56,242.80x = 77,612.68 × 30,748.72
  4. Step 4: Simplify right side
    56,242.80x = 2,386,490,565.77
  5. Step 5: Solve for x
    x = 2,386,490,565.77/56,242.80
  6. Step 6: Final answer
    x = 42,431.93

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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.