Home / 56,277.05-77,661.38-31,126.55

Finding the Fourth Proportional to 56,277.05, 77,661.38 and 31,126.55

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Solution

The fourth proportional to 56,277.05, 77,661.38 and 31,126.55 is: 42,954.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,277.05 : 77,661.38 = 31,126.55 : x
  2. Step 2: Convert to fraction form
    56,277.05/77,661.38 = 31,126.55/x
  3. Step 3: Cross multiply
    56,277.05x = 77,661.38 × 31,126.55
  4. Step 4: Simplify right side
    56,277.05x = 2,417,330,517.15
  5. Step 5: Solve for x
    x = 2,417,330,517.15/56,277.05
  6. Step 6: Final answer
    x = 42,954.11

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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.