Home / 51,007.70-76,511.55-42,842.90

Finding the Fourth Proportional to 51,007.70, 76,511.55 and 42,842.90

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Solution

The fourth proportional to 51,007.70, 76,511.55 and 42,842.90 is: 64,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,007.70 : 76,511.55 = 42,842.90 : x
  2. Step 2: Convert to fraction form
    51,007.70/76,511.55 = 42,842.90/x
  3. Step 3: Cross multiply
    51,007.70x = 76,511.55 × 42,842.90
  4. Step 4: Simplify right side
    51,007.70x = 3,277,976,685.50
  5. Step 5: Solve for x
    x = 3,277,976,685.50/51,007.70
  6. Step 6: Final answer
    x = 64,264.35

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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.