Home / 70,831.80-97,753.56-40,619.90

Finding the Fourth Proportional to 70,831.80, 97,753.56 and 40,619.90

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Solution

The fourth proportional to 70,831.80, 97,753.56 and 40,619.90 is: 56,058.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,831.80 : 97,753.56 = 40,619.90 : x
  2. Step 2: Convert to fraction form
    70,831.80/97,753.56 = 40,619.90/x
  3. Step 3: Cross multiply
    70,831.80x = 97,753.56 × 40,619.90
  4. Step 4: Simplify right side
    70,831.80x = 3,970,739,831.84
  5. Step 5: Solve for x
    x = 3,970,739,831.84/70,831.80
  6. Step 6: Final answer
    x = 56,058.72

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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.