Home / 71,231.63-98,293.05-39,399.84

Finding the Fourth Proportional to 71,231.63, 98,293.05 and 39,399.84

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Solution

The fourth proportional to 71,231.63, 98,293.05 and 39,399.84 is: 54,368.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,231.63 : 98,293.05 = 39,399.84 : x
  2. Step 2: Convert to fraction form
    71,231.63/98,293.05 = 39,399.84/x
  3. Step 3: Cross multiply
    71,231.63x = 98,293.05 × 39,399.84
  4. Step 4: Simplify right side
    71,231.63x = 3,872,730,443.11
  5. Step 5: Solve for x
    x = 3,872,730,443.11/71,231.63
  6. Step 6: Final answer
    x = 54,368.13

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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.