Home / 85,013.52-127,465.58-40,639.28

Finding the Fourth Proportional to 85,013.52, 127,465.58 and 40,639.28

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Solution

The fourth proportional to 85,013.52, 127,465.58 and 40,639.28 is: 60,932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,013.52 : 127,465.58 = 40,639.28 : x
  2. Step 2: Convert to fraction form
    85,013.52/127,465.58 = 40,639.28/x
  3. Step 3: Cross multiply
    85,013.52x = 127,465.58 × 40,639.28
  4. Step 4: Simplify right side
    85,013.52x = 5,180,109,395.98
  5. Step 5: Solve for x
    x = 5,180,109,395.98/85,013.52
  6. Step 6: Final answer
    x = 60,932.77

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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.