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Finding the Fourth Proportional to 45,420.60, 63,654.45 and 45,420.60

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Solution

The fourth proportional to 45,420.60, 63,654.45 and 45,420.60 is: 63,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.60 : 63,654.45 = 45,420.60 : x
  2. Step 2: Convert to fraction form
    45,420.60/63,654.45 = 45,420.60/x
  3. Step 3: Cross multiply
    45,420.60x = 63,654.45 × 45,420.60
  4. Step 4: Simplify right side
    45,420.60x = 2,891,223,311.67
  5. Step 5: Solve for x
    x = 2,891,223,311.67/45,420.60
  6. Step 6: Final answer
    x = 63,654.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.