Home / 88,108.02-121,589.18-47,821.78

Finding the Fourth Proportional to 88,108.02, 121,589.18 and 47,821.78

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Solution

The fourth proportional to 88,108.02, 121,589.18 and 47,821.78 is: 65,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,108.02 : 121,589.18 = 47,821.78 : x
  2. Step 2: Convert to fraction form
    88,108.02/121,589.18 = 47,821.78/x
  3. Step 3: Cross multiply
    88,108.02x = 121,589.18 × 47,821.78
  4. Step 4: Simplify right side
    88,108.02x = 5,814,611,016.34
  5. Step 5: Solve for x
    x = 5,814,611,016.34/88,108.02
  6. Step 6: Final answer
    x = 65,994.12

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1.5x scale

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.