Home / 75,417.60-104,076.12-51,543.72

Finding the Fourth Proportional to 75,417.60, 104,076.12 and 51,543.72

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Solution

The fourth proportional to 75,417.60, 104,076.12 and 51,543.72 is: 71,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,417.60 : 104,076.12 = 51,543.72 : x
  2. Step 2: Convert to fraction form
    75,417.60/104,076.12 = 51,543.72/x
  3. Step 3: Cross multiply
    75,417.60x = 104,076.12 × 51,543.72
  4. Step 4: Simplify right side
    75,417.60x = 5,364,470,387.97
  5. Step 5: Solve for x
    x = 5,364,470,387.97/75,417.60
  6. Step 6: Final answer
    x = 71,130.22

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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.