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Finding the Fourth Proportional to 66,465.32, 99,697.66 and 63,143.08

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Solution

The fourth proportional to 66,465.32, 99,697.66 and 63,143.08 is: 94,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465.32 : 99,697.66 = 63,143.08 : x
  2. Step 2: Convert to fraction form
    66,465.32/99,697.66 = 63,143.08/x
  3. Step 3: Cross multiply
    66,465.32x = 99,697.66 × 63,143.08
  4. Step 4: Simplify right side
    66,465.32x = 6,295,217,321.19
  5. Step 5: Solve for x
    x = 6,295,217,321.19/66,465.32
  6. Step 6: Final answer
    x = 94,714.32

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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.