Home / 40,719.85-60,989.54-31,290.46

Finding the Fourth Proportional to 40,719.85, 60,989.54 and 31,290.46

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Solution

The fourth proportional to 40,719.85, 60,989.54 and 31,290.46 is: 46,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,719.85 : 60,989.54 = 31,290.46 : x
  2. Step 2: Convert to fraction form
    40,719.85/60,989.54 = 31,290.46/x
  3. Step 3: Cross multiply
    40,719.85x = 60,989.54 × 31,290.46
  4. Step 4: Simplify right side
    40,719.85x = 1,908,390,452.86
  5. Step 5: Solve for x
    x = 1,908,390,452.86/40,719.85
  6. Step 6: Final answer
    x = 46,866.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.