Home / 66,061.12-99,078.72-19,303.08

Finding the Fourth Proportional to 66,061.12, 99,078.72 and 19,303.08

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Solution

The fourth proportional to 66,061.12, 99,078.72 and 19,303.08 is: 28,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,061.12 : 99,078.72 = 19,303.08 : x
  2. Step 2: Convert to fraction form
    66,061.12/99,078.72 = 19,303.08/x
  3. Step 3: Cross multiply
    66,061.12x = 99,078.72 × 19,303.08
  4. Step 4: Simplify right side
    66,061.12x = 1,912,524,458.46
  5. Step 5: Solve for x
    x = 1,912,524,458.46/66,061.12
  6. Step 6: Final answer
    x = 28,950.83

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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.