Home / 70,882.31-97,831.75-40,688.04

Finding the Fourth Proportional to 70,882.31, 97,831.75 and 40,688.04

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Solution

The fourth proportional to 70,882.31, 97,831.75 and 40,688.04 is: 56,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,882.31 : 97,831.75 = 40,688.04 : x
  2. Step 2: Convert to fraction form
    70,882.31/97,831.75 = 40,688.04/x
  3. Step 3: Cross multiply
    70,882.31x = 97,831.75 × 40,688.04
  4. Step 4: Simplify right side
    70,882.31x = 3,980,582,157.27
  5. Step 5: Solve for x
    x = 3,980,582,157.27/70,882.31
  6. Step 6: Final answer
    x = 56,157.62

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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.