Home / 56,355.19-77,772.60-31,204.69

Finding the Fourth Proportional to 56,355.19, 77,772.60 and 31,204.69

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Solution

The fourth proportional to 56,355.19, 77,772.60 and 31,204.69 is: 43,063.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,355.19 : 77,772.60 = 31,204.69 : x
  2. Step 2: Convert to fraction form
    56,355.19/77,772.60 = 31,204.69/x
  3. Step 3: Cross multiply
    56,355.19x = 77,772.60 × 31,204.69
  4. Step 4: Simplify right side
    56,355.19x = 2,426,869,679.06
  5. Step 5: Solve for x
    x = 2,426,869,679.06/56,355.19
  6. Step 6: Final answer
    x = 43,063.82

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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.