Home / 88,275.13-121,814.61-47,988.57

Finding the Fourth Proportional to 88,275.13, 121,814.61 and 47,988.57

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Solution

The fourth proportional to 88,275.13, 121,814.61 and 47,988.57 is: 66,221.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,275.13 : 121,814.61 = 47,988.57 : x
  2. Step 2: Convert to fraction form
    88,275.13/121,814.61 = 47,988.57/x
  3. Step 3: Cross multiply
    88,275.13x = 121,814.61 × 47,988.57
  4. Step 4: Simplify right side
    88,275.13x = 5,845,708,939.01
  5. Step 5: Solve for x
    x = 5,845,708,939.01/88,275.13
  6. Step 6: Final answer
    x = 66,221.47

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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.