Home / 71,339.81-98,449.22-39,508.02

Finding the Fourth Proportional to 71,339.81, 98,449.22 and 39,508.02

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Solution

The fourth proportional to 71,339.81, 98,449.22 and 39,508.02 is: 54,521.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,339.81 : 98,449.22 = 39,508.02 : x
  2. Step 2: Convert to fraction form
    71,339.81/98,449.22 = 39,508.02/x
  3. Step 3: Cross multiply
    71,339.81x = 98,449.22 × 39,508.02
  4. Step 4: Simplify right side
    71,339.81x = 3,889,533,851.51
  5. Step 5: Solve for x
    x = 3,889,533,851.51/71,339.81
  6. Step 6: Final answer
    x = 54,521.23

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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.