Home / 88,129.19-121,573.23-56,264.60

Finding the Fourth Proportional to 88,129.19, 121,573.23 and 56,264.60

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Solution

The fourth proportional to 88,129.19, 121,573.23 and 56,264.60 is: 77,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,129.19 : 121,573.23 = 56,264.60 : x
  2. Step 2: Convert to fraction form
    88,129.19/121,573.23 = 56,264.60/x
  3. Step 3: Cross multiply
    88,129.19x = 121,573.23 × 56,264.60
  4. Step 4: Simplify right side
    88,129.19x = 6,840,269,156.66
  5. Step 5: Solve for x
    x = 6,840,269,156.66/88,129.19
  6. Step 6: Final answer
    x = 77,616.39

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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.