Home / 71,510.04-98,684.73-39,681.90

Finding the Fourth Proportional to 71,510.04, 98,684.73 and 39,681.90

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Solution

The fourth proportional to 71,510.04, 98,684.73 and 39,681.90 is: 54,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.04 : 98,684.73 = 39,681.90 : x
  2. Step 2: Convert to fraction form
    71,510.04/98,684.73 = 39,681.90/x
  3. Step 3: Cross multiply
    71,510.04x = 98,684.73 × 39,681.90
  4. Step 4: Simplify right side
    71,510.04x = 3,915,997,587.39
  5. Step 5: Solve for x
    x = 3,915,997,587.39/71,510.04
  6. Step 6: Final answer
    x = 54,761.51

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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.