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Finding the Fourth Proportional to 61,415.47, 84,755 and 34,558.92

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Solution

The fourth proportional to 61,415.47, 84,755 and 34,558.92 is: 47,692.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.47 : 84,755 = 34,558.92 : x
  2. Step 2: Convert to fraction form
    61,415.47/84,755 = 34,558.92/x
  3. Step 3: Cross multiply
    61,415.47x = 84,755 × 34,558.92
  4. Step 4: Simplify right side
    61,415.47x = 2,929,041,264.60
  5. Step 5: Solve for x
    x = 2,929,041,264.60/61,415.47
  6. Step 6: Final answer
    x = 47,692.24

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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.