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Finding the Fourth Proportional to 70,102.45, 96,741.71 and 38,272.08

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Solution

The fourth proportional to 70,102.45, 96,741.71 and 38,272.08 is: 52,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,102.45 : 96,741.71 = 38,272.08 : x
  2. Step 2: Convert to fraction form
    70,102.45/96,741.71 = 38,272.08/x
  3. Step 3: Cross multiply
    70,102.45x = 96,741.71 × 38,272.08
  4. Step 4: Simplify right side
    70,102.45x = 3,702,506,464.46
  5. Step 5: Solve for x
    x = 3,702,506,464.46/70,102.45
  6. Step 6: Final answer
    x = 52,815.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.