Home / 87,857.03-121,242.52-47,570.83

Finding the Fourth Proportional to 87,857.03, 121,242.52 and 47,570.83

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Solution

The fourth proportional to 87,857.03, 121,242.52 and 47,570.83 is: 65,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,857.03 : 121,242.52 = 47,570.83 : x
  2. Step 2: Convert to fraction form
    87,857.03/121,242.52 = 47,570.83/x
  3. Step 3: Cross multiply
    87,857.03x = 121,242.52 × 47,570.83
  4. Step 4: Simplify right side
    87,857.03x = 5,767,607,307.69
  5. Step 5: Solve for x
    x = 5,767,607,307.69/87,857.03
  6. Step 6: Final answer
    x = 65,647.65

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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.