Home / 56,376.16-77,799.20-31,225.12

Finding the Fourth Proportional to 56,376.16, 77,799.20 and 31,225.12

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Solution

The fourth proportional to 56,376.16, 77,799.20 and 31,225.12 is: 43,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,376.16 : 77,799.20 = 31,225.12 : x
  2. Step 2: Convert to fraction form
    56,376.16/77,799.20 = 31,225.12/x
  3. Step 3: Cross multiply
    56,376.16x = 77,799.20 × 31,225.12
  4. Step 4: Simplify right side
    56,376.16x = 2,429,289,355.90
  5. Step 5: Solve for x
    x = 2,429,289,355.90/56,376.16
  6. Step 6: Final answer
    x = 43,090.72

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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.