Home / 56,356.40-77,775.88-31,207.60

Finding the Fourth Proportional to 56,356.40, 77,775.88 and 31,207.60

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Solution

The fourth proportional to 56,356.40, 77,775.88 and 31,207.60 is: 43,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,356.40 : 77,775.88 = 31,207.60 : x
  2. Step 2: Convert to fraction form
    56,356.40/77,775.88 = 31,207.60/x
  3. Step 3: Cross multiply
    56,356.40x = 77,775.88 × 31,207.60
  4. Step 4: Simplify right side
    56,356.40x = 2,427,198,552.69
  5. Step 5: Solve for x
    x = 2,427,198,552.69/56,356.40
  6. Step 6: Final answer
    x = 43,068.73

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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.