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Finding the Fourth Proportional to 66,417.56, 99,626.16 and 19,674.08

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Solution

The fourth proportional to 66,417.56, 99,626.16 and 19,674.08 is: 29,511.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,417.56 : 99,626.16 = 19,674.08 : x
  2. Step 2: Convert to fraction form
    66,417.56/99,626.16 = 19,674.08/x
  3. Step 3: Cross multiply
    66,417.56x = 99,626.16 × 19,674.08
  4. Step 4: Simplify right side
    66,417.56x = 1,960,053,041.93
  5. Step 5: Solve for x
    x = 1,960,053,041.93/66,417.56
  6. Step 6: Final answer
    x = 29,511.07

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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.