Home / 81,831.84-122,752.08-26,432.16

Finding the Fourth Proportional to 81,831.84, 122,752.08 and 26,432.16

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Solution

The fourth proportional to 81,831.84, 122,752.08 and 26,432.16 is: 39,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,831.84 : 122,752.08 = 26,432.16 : x
  2. Step 2: Convert to fraction form
    81,831.84/122,752.08 = 26,432.16/x
  3. Step 3: Cross multiply
    81,831.84x = 122,752.08 × 26,432.16
  4. Step 4: Simplify right side
    81,831.84x = 3,244,602,618.89
  5. Step 5: Solve for x
    x = 3,244,602,618.89/81,831.84
  6. Step 6: Final answer
    x = 39,649.64

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1.5x scale

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.