Home / 71,510.47-98,686.68-39,682.33

Finding the Fourth Proportional to 71,510.47, 98,686.68 and 39,682.33

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Solution

The fourth proportional to 71,510.47, 98,686.68 and 39,682.33 is: 54,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,510.47 : 98,686.68 = 39,682.33 : x
  2. Step 2: Convert to fraction form
    71,510.47/98,686.68 = 39,682.33/x
  3. Step 3: Cross multiply
    71,510.47x = 98,686.68 × 39,682.33
  4. Step 4: Simplify right side
    71,510.47x = 3,916,117,402.36
  5. Step 5: Solve for x
    x = 3,916,117,402.36/71,510.47
  6. Step 6: Final answer
    x = 54,762.85

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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.