Home / 87,681.48-121,000.35-47,395.23

Finding the Fourth Proportional to 87,681.48, 121,000.35 and 47,395.23

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Solution

The fourth proportional to 87,681.48, 121,000.35 and 47,395.23 is: 65,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,681.48 : 121,000.35 = 47,395.23 : x
  2. Step 2: Convert to fraction form
    87,681.48/121,000.35 = 47,395.23/x
  3. Step 3: Cross multiply
    87,681.48x = 121,000.35 × 47,395.23
  4. Step 4: Simplify right side
    87,681.48x = 5,734,839,418.33
  5. Step 5: Solve for x
    x = 5,734,839,418.33/87,681.48
  6. Step 6: Final answer
    x = 65,405.37

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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.