Home / 56,220.12-77,580.72-31,068

Finding the Fourth Proportional to 56,220.12, 77,580.72 and 31,068

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Solution

The fourth proportional to 56,220.12, 77,580.72 and 31,068 is: 42,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,220.12 : 77,580.72 = 31,068 : x
  2. Step 2: Convert to fraction form
    56,220.12/77,580.72 = 31,068/x
  3. Step 3: Cross multiply
    56,220.12x = 77,580.72 × 31,068
  4. Step 4: Simplify right side
    56,220.12x = 2,410,277,808.96
  5. Step 5: Solve for x
    x = 2,410,277,808.96/56,220.12
  6. Step 6: Final answer
    x = 42,872.16

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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.