Home / 76,270.74-105,248.61-42,730.26

Finding the Fourth Proportional to 76,270.74, 105,248.61 and 42,730.26

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Solution

The fourth proportional to 76,270.74, 105,248.61 and 42,730.26 is: 58,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,270.74 : 105,248.61 = 42,730.26 : x
  2. Step 2: Convert to fraction form
    76,270.74/105,248.61 = 42,730.26/x
  3. Step 3: Cross multiply
    76,270.74x = 105,248.61 × 42,730.26
  4. Step 4: Simplify right side
    76,270.74x = 4,497,300,469.94
  5. Step 5: Solve for x
    x = 4,497,300,469.94/76,270.74
  6. Step 6: Final answer
    x = 58,964.95

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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.