Home / 83,931.24-115,820.64-48,119.52

Finding the Fourth Proportional to 83,931.24, 115,820.64 and 48,119.52

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Solution

The fourth proportional to 83,931.24, 115,820.64 and 48,119.52 is: 66,402.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,931.24 : 115,820.64 = 48,119.52 : x
  2. Step 2: Convert to fraction form
    83,931.24/115,820.64 = 48,119.52/x
  3. Step 3: Cross multiply
    83,931.24x = 115,820.64 × 48,119.52
  4. Step 4: Simplify right side
    83,931.24x = 5,573,233,602.89
  5. Step 5: Solve for x
    x = 5,573,233,602.89/83,931.24
  6. Step 6: Final answer
    x = 66,402.37

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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.