Home / 49,775.40-74,663.10-45,973.80

Finding the Fourth Proportional to 49,775.40, 74,663.10 and 45,973.80

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Solution

The fourth proportional to 49,775.40, 74,663.10 and 45,973.80 is: 68,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,775.40 : 74,663.10 = 45,973.80 : x
  2. Step 2: Convert to fraction form
    49,775.40/74,663.10 = 45,973.80/x
  3. Step 3: Cross multiply
    49,775.40x = 74,663.10 × 45,973.80
  4. Step 4: Simplify right side
    49,775.40x = 3,432,546,426.78
  5. Step 5: Solve for x
    x = 3,432,546,426.78/49,775.40
  6. Step 6: Final answer
    x = 68,960.70

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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.