Home / 87,948.30-121,362.66-56,113.68

Finding the Fourth Proportional to 87,948.30, 121,362.66 and 56,113.68

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Solution

The fourth proportional to 87,948.30, 121,362.66 and 56,113.68 is: 77,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,948.30 : 121,362.66 = 56,113.68 : x
  2. Step 2: Convert to fraction form
    87,948.30/121,362.66 = 56,113.68/x
  3. Step 3: Cross multiply
    87,948.30x = 121,362.66 × 56,113.68
  4. Step 4: Simplify right side
    87,948.30x = 6,810,105,467.19
  5. Step 5: Solve for x
    x = 6,810,105,467.19/87,948.30
  6. Step 6: Final answer
    x = 77,433.05

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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.