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Finding the Fourth Proportional to 92,477.70, 138,722.70 and 25,920.45

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Solution

The fourth proportional to 92,477.70, 138,722.70 and 25,920.45 is: 38,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,477.70 : 138,722.70 = 25,920.45 : x
  2. Step 2: Convert to fraction form
    92,477.70/138,722.70 = 25,920.45/x
  3. Step 3: Cross multiply
    92,477.70x = 138,722.70 × 25,920.45
  4. Step 4: Simplify right side
    92,477.70x = 3,595,754,809.22
  5. Step 5: Solve for x
    x = 3,595,754,809.22/92,477.70
  6. Step 6: Final answer
    x = 38,882.40

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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.