Home / 71,464.28-98,618.22-39,636.14

Finding the Fourth Proportional to 71,464.28, 98,618.22 and 39,636.14

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Solution

The fourth proportional to 71,464.28, 98,618.22 and 39,636.14 is: 54,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,464.28 : 98,618.22 = 39,636.14 : x
  2. Step 2: Convert to fraction form
    71,464.28/98,618.22 = 39,636.14/x
  3. Step 3: Cross multiply
    71,464.28x = 98,618.22 × 39,636.14
  4. Step 4: Simplify right side
    71,464.28x = 3,908,845,574.47
  5. Step 5: Solve for x
    x = 3,908,845,574.47/71,464.28
  6. Step 6: Final answer
    x = 54,696.49

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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.