Home / 71,510.17-98,684.03-39,684.19

Finding the Fourth Proportional to 71,510.17, 98,684.03 and 39,684.19

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Solution

The fourth proportional to 71,510.17, 98,684.03 and 39,684.19 is: 54,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.17 : 98,684.03 = 39,684.19 : x
  2. Step 2: Convert to fraction form
    71,510.17/98,684.03 = 39,684.19/x
  3. Step 3: Cross multiply
    71,510.17x = 98,684.03 × 39,684.19
  4. Step 4: Simplify right side
    71,510.17x = 3,916,195,834.02
  5. Step 5: Solve for x
    x = 3,916,195,834.02/71,510.17
  6. Step 6: Final answer
    x = 54,764.18

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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.