Home / 87,851.45-121,233.53-47,564.89

Finding the Fourth Proportional to 87,851.45, 121,233.53 and 47,564.89

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Solution

The fourth proportional to 87,851.45, 121,233.53 and 47,564.89 is: 65,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.45 : 121,233.53 = 47,564.89 : x
  2. Step 2: Convert to fraction form
    87,851.45/121,233.53 = 47,564.89/x
  3. Step 3: Cross multiply
    87,851.45x = 121,233.53 × 47,564.89
  4. Step 4: Simplify right side
    87,851.45x = 5,766,458,674.77
  5. Step 5: Solve for x
    x = 5,766,458,674.77/87,851.45
  6. Step 6: Final answer
    x = 65,638.74

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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.