Home / 91,992.20-126,959.75-51,160.40

Finding the Fourth Proportional to 91,992.20, 126,959.75 and 51,160.40

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Solution

The fourth proportional to 91,992.20, 126,959.75 and 51,160.40 is: 70,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,992.20 : 126,959.75 = 51,160.40 : x
  2. Step 2: Convert to fraction form
    91,992.20/126,959.75 = 51,160.40/x
  3. Step 3: Cross multiply
    91,992.20x = 126,959.75 × 51,160.40
  4. Step 4: Simplify right side
    91,992.20x = 6,495,310,703.30
  5. Step 5: Solve for x
    x = 6,495,310,703.30/91,992.20
  6. Step 6: Final answer
    x = 70,607.19

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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.