Home / 65,109.12-97,663.58-42,760.88

Finding the Fourth Proportional to 65,109.12, 97,663.58 and 42,760.88

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Solution

The fourth proportional to 65,109.12, 97,663.58 and 42,760.88 is: 64,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,109.12 : 97,663.58 = 42,760.88 : x
  2. Step 2: Convert to fraction form
    65,109.12/97,663.58 = 42,760.88/x
  3. Step 3: Cross multiply
    65,109.12x = 97,663.58 × 42,760.88
  4. Step 4: Simplify right side
    65,109.12x = 4,176,180,624.75
  5. Step 5: Solve for x
    x = 4,176,180,624.75/65,109.12
  6. Step 6: Final answer
    x = 64,141.25

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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.