Home / 88,139.84-121,632.98-47,853.54

Finding the Fourth Proportional to 88,139.84, 121,632.98 and 47,853.54

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Solution

The fourth proportional to 88,139.84, 121,632.98 and 47,853.54 is: 66,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,139.84 : 121,632.98 = 47,853.54 : x
  2. Step 2: Convert to fraction form
    88,139.84/121,632.98 = 47,853.54/x
  3. Step 3: Cross multiply
    88,139.84x = 121,632.98 × 47,853.54
  4. Step 4: Simplify right side
    88,139.84x = 5,820,568,434.48
  5. Step 5: Solve for x
    x = 5,820,568,434.48/88,139.84
  6. Step 6: Final answer
    x = 66,037.89

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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.