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Finding the Fourth Proportional to 76,378.98, 114,541.13 and 26,445.68

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Solution

The fourth proportional to 76,378.98, 114,541.13 and 26,445.68 is: 39,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,378.98 : 114,541.13 = 26,445.68 : x
  2. Step 2: Convert to fraction form
    76,378.98/114,541.13 = 26,445.68/x
  3. Step 3: Cross multiply
    76,378.98x = 114,541.13 × 26,445.68
  4. Step 4: Simplify right side
    76,378.98x = 3,029,117,564.23
  5. Step 5: Solve for x
    x = 3,029,117,564.23/76,378.98
  6. Step 6: Final answer
    x = 39,659.05

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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.