Home / 66,129.28-99,210.69-30,616.21

Finding the Fourth Proportional to 66,129.28, 99,210.69 and 30,616.21

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Solution

The fourth proportional to 66,129.28, 99,210.69 and 30,616.21 is: 45,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,129.28 : 99,210.69 = 30,616.21 : x
  2. Step 2: Convert to fraction form
    66,129.28/99,210.69 = 30,616.21/x
  3. Step 3: Cross multiply
    66,129.28x = 99,210.69 × 30,616.21
  4. Step 4: Simplify right side
    66,129.28x = 3,037,455,443.30
  5. Step 5: Solve for x
    x = 3,037,455,443.30/66,129.28
  6. Step 6: Final answer
    x = 45,932.08

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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.