Home / 85,583.18-127,747.73-75,483.04

Finding the Fourth Proportional to 85,583.18, 127,747.73 and 75,483.04

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Solution

The fourth proportional to 85,583.18, 127,747.73 and 75,483.04 is: 112,671.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,583.18 : 127,747.73 = 75,483.04 : x
  2. Step 2: Convert to fraction form
    85,583.18/127,747.73 = 75,483.04/x
  3. Step 3: Cross multiply
    85,583.18x = 127,747.73 × 75,483.04
  4. Step 4: Simplify right side
    85,583.18x = 9,642,787,122.36
  5. Step 5: Solve for x
    x = 9,642,787,122.36/85,583.18
  6. Step 6: Final answer
    x = 112,671.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.