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Finding the Fourth Proportional to 76,422.68, 114,527.25 and 65,118.98

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Solution

The fourth proportional to 76,422.68, 114,527.25 and 65,118.98 is: 97,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,422.68 : 114,527.25 = 65,118.98 : x
  2. Step 2: Convert to fraction form
    76,422.68/114,527.25 = 65,118.98/x
  3. Step 3: Cross multiply
    76,422.68x = 114,527.25 × 65,118.98
  4. Step 4: Simplify right side
    76,422.68x = 7,457,897,702.21
  5. Step 5: Solve for x
    x = 7,457,897,702.21/76,422.68
  6. Step 6: Final answer
    x = 97,587.49

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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.