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Finding the Fourth Proportional to 45,681.60, 63,043.20 and 25,809.60

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Solution

The fourth proportional to 45,681.60, 63,043.20 and 25,809.60 is: 35,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,681.60 : 63,043.20 = 25,809.60 : x
  2. Step 2: Convert to fraction form
    45,681.60/63,043.20 = 25,809.60/x
  3. Step 3: Cross multiply
    45,681.60x = 63,043.20 × 25,809.60
  4. Step 4: Simplify right side
    45,681.60x = 1,627,119,774.72
  5. Step 5: Solve for x
    x = 1,627,119,774.72/45,681.60
  6. Step 6: Final answer
    x = 35,618.71

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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.