Home / 74,528.20-102,863.52-42,718.40

Finding the Fourth Proportional to 74,528.20, 102,863.52 and 42,718.40

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Solution

The fourth proportional to 74,528.20, 102,863.52 and 42,718.40 is: 58,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,528.20 : 102,863.52 = 42,718.40 : x
  2. Step 2: Convert to fraction form
    74,528.20/102,863.52 = 42,718.40/x
  3. Step 3: Cross multiply
    74,528.20x = 102,863.52 × 42,718.40
  4. Step 4: Simplify right side
    74,528.20x = 4,394,164,992.77
  5. Step 5: Solve for x
    x = 4,394,164,992.77/74,528.20
  6. Step 6: Final answer
    x = 58,959.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.