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Finding the Fourth Proportional to 65,438.12, 97,654.05 and 65,063.88

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Solution

The fourth proportional to 65,438.12, 97,654.05 and 65,063.88 is: 97,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,438.12 : 97,654.05 = 65,063.88 : x
  2. Step 2: Convert to fraction form
    65,438.12/97,654.05 = 65,063.88/x
  3. Step 3: Cross multiply
    65,438.12x = 97,654.05 × 65,063.88
  4. Step 4: Simplify right side
    65,438.12x = 6,353,751,390.71
  5. Step 5: Solve for x
    x = 6,353,751,390.71/65,438.12
  6. Step 6: Final answer
    x = 97,095.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.