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Finding the Fourth Proportional to 63,420.03, 87,578.48 and 47,476.80

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Solution

The fourth proportional to 63,420.03, 87,578.48 and 47,476.80 is: 65,562.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,420.03 : 87,578.48 = 47,476.80 : x
  2. Step 2: Convert to fraction form
    63,420.03/87,578.48 = 47,476.80/x
  3. Step 3: Cross multiply
    63,420.03x = 87,578.48 × 47,476.80
  4. Step 4: Simplify right side
    63,420.03x = 4,157,946,248.34
  5. Step 5: Solve for x
    x = 4,157,946,248.34/63,420.03
  6. Step 6: Final answer
    x = 65,562.03

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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.