Home / 82,831.50-124,199.87-38,435.40

Finding the Fourth Proportional to 82,831.50, 124,199.87 and 38,435.40

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Solution

The fourth proportional to 82,831.50, 124,199.87 and 38,435.40 is: 57,631.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,831.50 : 124,199.87 = 38,435.40 : x
  2. Step 2: Convert to fraction form
    82,831.50/124,199.87 = 38,435.40/x
  3. Step 3: Cross multiply
    82,831.50x = 124,199.87 × 38,435.40
  4. Step 4: Simplify right side
    82,831.50x = 4,773,671,491.22
  5. Step 5: Solve for x
    x = 4,773,671,491.22/82,831.50
  6. Step 6: Final answer
    x = 57,631.11

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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.