Home / 74,430.20-111,515.70-64,062.20

Finding the Fourth Proportional to 74,430.20, 111,515.70 and 64,062.20

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Solution

The fourth proportional to 74,430.20, 111,515.70 and 64,062.20 is: 95,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.20 : 111,515.70 = 64,062.20 : x
  2. Step 2: Convert to fraction form
    74,430.20/111,515.70 = 64,062.20/x
  3. Step 3: Cross multiply
    74,430.20x = 111,515.70 × 64,062.20
  4. Step 4: Simplify right side
    74,430.20x = 7,143,941,076.54
  5. Step 5: Solve for x
    x = 7,143,941,076.54/74,430.20
  6. Step 6: Final answer
    x = 95,981.75

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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.