Home / 76,273.76-105,252.48-42,281.92

Finding the Fourth Proportional to 76,273.76, 105,252.48 and 42,281.92

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Solution

The fourth proportional to 76,273.76, 105,252.48 and 42,281.92 is: 58,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,273.76 : 105,252.48 = 42,281.92 : x
  2. Step 2: Convert to fraction form
    76,273.76/105,252.48 = 42,281.92/x
  3. Step 3: Cross multiply
    76,273.76x = 105,252.48 × 42,281.92
  4. Step 4: Simplify right side
    76,273.76x = 4,450,276,939.16
  5. Step 5: Solve for x
    x = 4,450,276,939.16/76,273.76
  6. Step 6: Final answer
    x = 58,346.11

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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.