Home / 71,117.18-98,144.69-40,902.51

Finding the Fourth Proportional to 71,117.18, 98,144.69 and 40,902.51

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Solution

The fourth proportional to 71,117.18, 98,144.69 and 40,902.51 is: 56,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,117.18 : 98,144.69 = 40,902.51 : x
  2. Step 2: Convert to fraction form
    71,117.18/98,144.69 = 40,902.51/x
  3. Step 3: Cross multiply
    71,117.18x = 98,144.69 × 40,902.51
  4. Step 4: Simplify right side
    71,117.18x = 4,014,363,959.66
  5. Step 5: Solve for x
    x = 4,014,363,959.66/71,117.18
  6. Step 6: Final answer
    x = 56,447.18

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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.