Home / 88,123.66-121,610.80-47,837.45

Finding the Fourth Proportional to 88,123.66, 121,610.80 and 47,837.45

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Solution

The fourth proportional to 88,123.66, 121,610.80 and 47,837.45 is: 66,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.66 : 121,610.80 = 47,837.45 : x
  2. Step 2: Convert to fraction form
    88,123.66/121,610.80 = 47,837.45/x
  3. Step 3: Cross multiply
    88,123.66x = 121,610.80 × 47,837.45
  4. Step 4: Simplify right side
    88,123.66x = 5,817,550,564.46
  5. Step 5: Solve for x
    x = 5,817,550,564.46/88,123.66
  6. Step 6: Final answer
    x = 66,015.76

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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.