Home / 87,764.22-121,113.96-47,477.40

Finding the Fourth Proportional to 87,764.22, 121,113.96 and 47,477.40

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Solution

The fourth proportional to 87,764.22, 121,113.96 and 47,477.40 is: 65,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,764.22 : 121,113.96 = 47,477.40 : x
  2. Step 2: Convert to fraction form
    87,764.22/121,113.96 = 47,477.40/x
  3. Step 3: Cross multiply
    87,764.22x = 121,113.96 × 47,477.40
  4. Step 4: Simplify right side
    87,764.22x = 5,750,175,924.50
  5. Step 5: Solve for x
    x = 5,750,175,924.50/87,764.22
  6. Step 6: Final answer
    x = 65,518.45

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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.