Home / 56,270.56-77,648.16-31,119.52

Finding the Fourth Proportional to 56,270.56, 77,648.16 and 31,119.52

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Solution

The fourth proportional to 56,270.56, 77,648.16 and 31,119.52 is: 42,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,270.56 : 77,648.16 = 31,119.52 : x
  2. Step 2: Convert to fraction form
    56,270.56/77,648.16 = 31,119.52/x
  3. Step 3: Cross multiply
    56,270.56x = 77,648.16 × 31,119.52
  4. Step 4: Simplify right side
    56,270.56x = 2,416,373,468.08
  5. Step 5: Solve for x
    x = 2,416,373,468.08/56,270.56
  6. Step 6: Final answer
    x = 42,942.05

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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.