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Finding the Fourth Proportional to 61,541.50, 92,321.16 and 19,407.28

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Solution

The fourth proportional to 61,541.50, 92,321.16 and 19,407.28 is: 29,113.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,541.50 : 92,321.16 = 19,407.28 : x
  2. Step 2: Convert to fraction form
    61,541.50/92,321.16 = 19,407.28/x
  3. Step 3: Cross multiply
    61,541.50x = 92,321.16 × 19,407.28
  4. Step 4: Simplify right side
    61,541.50x = 1,791,702,602.04
  5. Step 5: Solve for x
    x = 1,791,702,602.04/61,541.50
  6. Step 6: Final answer
    x = 29,113.73

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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.