Home / 56,358.72-77,780.25-31,208.22

Finding the Fourth Proportional to 56,358.72, 77,780.25 and 31,208.22

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Solution

The fourth proportional to 56,358.72, 77,780.25 and 31,208.22 is: 43,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.72 : 77,780.25 = 31,208.22 : x
  2. Step 2: Convert to fraction form
    56,358.72/77,780.25 = 31,208.22/x
  3. Step 3: Cross multiply
    56,358.72x = 77,780.25 × 31,208.22
  4. Step 4: Simplify right side
    56,358.72x = 2,427,383,153.66
  5. Step 5: Solve for x
    x = 2,427,383,153.66/56,358.72
  6. Step 6: Final answer
    x = 43,070.23

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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.