Home / 54,831.16-75,670.50-30,949.12

Finding the Fourth Proportional to 54,831.16, 75,670.50 and 30,949.12

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Solution

The fourth proportional to 54,831.16, 75,670.50 and 30,949.12 is: 42,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,831.16 : 75,670.50 = 30,949.12 : x
  2. Step 2: Convert to fraction form
    54,831.16/75,670.50 = 30,949.12/x
  3. Step 3: Cross multiply
    54,831.16x = 75,670.50 × 30,949.12
  4. Step 4: Simplify right side
    54,831.16x = 2,341,935,384.96
  5. Step 5: Solve for x
    x = 2,341,935,384.96/54,831.16
  6. Step 6: Final answer
    x = 42,711.76

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1.5x scale

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.