Home / 87,835.13-121,212.34-47,548.88

Finding the Fourth Proportional to 87,835.13, 121,212.34 and 47,548.88

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Solution

The fourth proportional to 87,835.13, 121,212.34 and 47,548.88 is: 65,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.13 : 121,212.34 = 47,548.88 : x
  2. Step 2: Convert to fraction form
    87,835.13/121,212.34 = 47,548.88/x
  3. Step 3: Cross multiply
    87,835.13x = 121,212.34 × 47,548.88
  4. Step 4: Simplify right side
    87,835.13x = 5,763,510,909.25
  5. Step 5: Solve for x
    x = 5,763,510,909.25/87,835.13
  6. Step 6: Final answer
    x = 65,617.38

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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.