Home / 88,165.15-121,670.31-51,869.15

Finding the Fourth Proportional to 88,165.15, 121,670.31 and 51,869.15

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Solution

The fourth proportional to 88,165.15, 121,670.31 and 51,869.15 is: 71,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,165.15 : 121,670.31 = 51,869.15 : x
  2. Step 2: Convert to fraction form
    88,165.15/121,670.31 = 51,869.15/x
  3. Step 3: Cross multiply
    88,165.15x = 121,670.31 × 51,869.15
  4. Step 4: Simplify right side
    88,165.15x = 6,310,935,559.94
  5. Step 5: Solve for x
    x = 6,310,935,559.94/88,165.15
  6. Step 6: Final answer
    x = 71,580.84

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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.