Home / 56,361.38-77,778.72-31,210.88

Finding the Fourth Proportional to 56,361.38, 77,778.72 and 31,210.88

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Solution

The fourth proportional to 56,361.38, 77,778.72 and 31,210.88 is: 43,071.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,361.38 : 77,778.72 = 31,210.88 : x
  2. Step 2: Convert to fraction form
    56,361.38/77,778.72 = 31,210.88/x
  3. Step 3: Cross multiply
    56,361.38x = 77,778.72 × 31,210.88
  4. Step 4: Simplify right side
    56,361.38x = 2,427,541,907.58
  5. Step 5: Solve for x
    x = 2,427,541,907.58/56,361.38
  6. Step 6: Final answer
    x = 43,071.02

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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.