Home / 87,897.45-121,298.43-47,611.11

Finding the Fourth Proportional to 87,897.45, 121,298.43 and 47,611.11

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Solution

The fourth proportional to 87,897.45, 121,298.43 and 47,611.11 is: 65,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.45 : 121,298.43 = 47,611.11 : x
  2. Step 2: Convert to fraction form
    87,897.45/121,298.43 = 47,611.11/x
  3. Step 3: Cross multiply
    87,897.45x = 121,298.43 × 47,611.11
  4. Step 4: Simplify right side
    87,897.45x = 5,775,152,893.56
  5. Step 5: Solve for x
    x = 5,775,152,893.56/87,897.45
  6. Step 6: Final answer
    x = 65,703.30

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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.