Home / 70,831.72-97,748.13-40,618.18

Finding the Fourth Proportional to 70,831.72, 97,748.13 and 40,618.18

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Solution

The fourth proportional to 70,831.72, 97,748.13 and 40,618.18 is: 56,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.72 : 97,748.13 = 40,618.18 : x
  2. Step 2: Convert to fraction form
    70,831.72/97,748.13 = 40,618.18/x
  3. Step 3: Cross multiply
    70,831.72x = 97,748.13 × 40,618.18
  4. Step 4: Simplify right side
    70,831.72x = 3,970,351,139.00
  5. Step 5: Solve for x
    x = 3,970,351,139.00/70,831.72
  6. Step 6: Final answer
    x = 56,053.29

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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.