Home / 88,271.61-121,809.85-47,985.18

Finding the Fourth Proportional to 88,271.61, 121,809.85 and 47,985.18

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Solution

The fourth proportional to 88,271.61, 121,809.85 and 47,985.18 is: 66,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,271.61 : 121,809.85 = 47,985.18 : x
  2. Step 2: Convert to fraction form
    88,271.61/121,809.85 = 47,985.18/x
  3. Step 3: Cross multiply
    88,271.61x = 121,809.85 × 47,985.18
  4. Step 4: Simplify right side
    88,271.61x = 5,845,067,578.02
  5. Step 5: Solve for x
    x = 5,845,067,578.02/88,271.61
  6. Step 6: Final answer
    x = 66,216.85

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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.