Home / 87,860.39-121,247.55-47,574.63

Finding the Fourth Proportional to 87,860.39, 121,247.55 and 47,574.63

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Solution

The fourth proportional to 87,860.39, 121,247.55 and 47,574.63 is: 65,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.39 : 121,247.55 = 47,574.63 : x
  2. Step 2: Convert to fraction form
    87,860.39/121,247.55 = 47,574.63/x
  3. Step 3: Cross multiply
    87,860.39x = 121,247.55 × 47,574.63
  4. Step 4: Simplify right side
    87,860.39x = 5,768,307,329.66
  5. Step 5: Solve for x
    x = 5,768,307,329.66/87,860.39
  6. Step 6: Final answer
    x = 65,653.11

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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.