Home / 88,139.54-121,633.44-47,853.74

Finding the Fourth Proportional to 88,139.54, 121,633.44 and 47,853.74

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Solution

The fourth proportional to 88,139.54, 121,633.44 and 47,853.74 is: 66,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,139.54 : 121,633.44 = 47,853.74 : x
  2. Step 2: Convert to fraction form
    88,139.54/121,633.44 = 47,853.74/x
  3. Step 3: Cross multiply
    88,139.54x = 121,633.44 × 47,853.74
  4. Step 4: Simplify right side
    88,139.54x = 5,820,615,013.07
  5. Step 5: Solve for x
    x = 5,820,615,013.07/88,139.54
  6. Step 6: Final answer
    x = 66,038.64

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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.