Home / 71,418.78-98,547.57-39,587.67

Finding the Fourth Proportional to 71,418.78, 98,547.57 and 39,587.67

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Solution

The fourth proportional to 71,418.78, 98,547.57 and 39,587.67 is: 54,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.78 : 98,547.57 = 39,587.67 : x
  2. Step 2: Convert to fraction form
    71,418.78/98,547.57 = 39,587.67/x
  3. Step 3: Cross multiply
    71,418.78x = 98,547.57 × 39,587.67
  4. Step 4: Simplify right side
    71,418.78x = 3,901,268,680.46
  5. Step 5: Solve for x
    x = 3,901,268,680.46/71,418.78
  6. Step 6: Final answer
    x = 54,625.25

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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.