Home / 76,330.08-105,287.04-55,140.48

Finding the Fourth Proportional to 76,330.08, 105,287.04 and 55,140.48

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Solution

The fourth proportional to 76,330.08, 105,287.04 and 55,140.48 is: 76,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,330.08 : 105,287.04 = 55,140.48 : x
  2. Step 2: Convert to fraction form
    76,330.08/105,287.04 = 55,140.48/x
  3. Step 3: Cross multiply
    76,330.08x = 105,287.04 × 55,140.48
  4. Step 4: Simplify right side
    76,330.08x = 5,805,577,923.38
  5. Step 5: Solve for x
    x = 5,805,577,923.38/76,330.08
  6. Step 6: Final answer
    x = 76,058.85

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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.