Home / 85,210.25-127,831.80-38,463.17

Finding the Fourth Proportional to 85,210.25, 127,831.80 and 38,463.17

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Solution

The fourth proportional to 85,210.25, 127,831.80 and 38,463.17 is: 57,702.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,210.25 : 127,831.80 = 38,463.17 : x
  2. Step 2: Convert to fraction form
    85,210.25/127,831.80 = 38,463.17/x
  3. Step 3: Cross multiply
    85,210.25x = 127,831.80 × 38,463.17
  4. Step 4: Simplify right side
    85,210.25x = 4,916,816,254.81
  5. Step 5: Solve for x
    x = 4,916,816,254.81/85,210.25
  6. Step 6: Final answer
    x = 57,702.17

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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.