Home / 65,400.19-98,158.61-30,359.59

Finding the Fourth Proportional to 65,400.19, 98,158.61 and 30,359.59

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Solution

The fourth proportional to 65,400.19, 98,158.61 and 30,359.59 is: 45,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,400.19 : 98,158.61 = 30,359.59 : x
  2. Step 2: Convert to fraction form
    65,400.19/98,158.61 = 30,359.59/x
  3. Step 3: Cross multiply
    65,400.19x = 98,158.61 × 30,359.59
  4. Step 4: Simplify right side
    65,400.19x = 2,980,055,154.57
  5. Step 5: Solve for x
    x = 2,980,055,154.57/65,400.19
  6. Step 6: Final answer
    x = 45,566.46

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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.