Home / 88,271.52-121,815.27-47,985.63

Finding the Fourth Proportional to 88,271.52, 121,815.27 and 47,985.63

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Solution

The fourth proportional to 88,271.52, 121,815.27 and 47,985.63 is: 66,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,271.52 : 121,815.27 = 47,985.63 : x
  2. Step 2: Convert to fraction form
    88,271.52/121,815.27 = 47,985.63/x
  3. Step 3: Cross multiply
    88,271.52x = 121,815.27 × 47,985.63
  4. Step 4: Simplify right side
    88,271.52x = 5,845,382,474.57
  5. Step 5: Solve for x
    x = 5,845,382,474.57/88,271.52
  6. Step 6: Final answer
    x = 66,220.48

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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.