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Finding the Fourth Proportional to 45,279.40, 62,490.18 and 26,415.40

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Solution

The fourth proportional to 45,279.40, 62,490.18 and 26,415.40 is: 36,455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,279.40 : 62,490.18 = 26,415.40 : x
  2. Step 2: Convert to fraction form
    45,279.40/62,490.18 = 26,415.40/x
  3. Step 3: Cross multiply
    45,279.40x = 62,490.18 × 26,415.40
  4. Step 4: Simplify right side
    45,279.40x = 1,650,703,100.77
  5. Step 5: Solve for x
    x = 1,650,703,100.77/45,279.40
  6. Step 6: Final answer
    x = 36,455.94

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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.