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Finding the Fourth Proportional to 72,024.63, 108,036.95 and 19,434.12

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Solution

The fourth proportional to 72,024.63, 108,036.95 and 19,434.12 is: 29,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,024.63 : 108,036.95 = 19,434.12 : x
  2. Step 2: Convert to fraction form
    72,024.63/108,036.95 = 19,434.12/x
  3. Step 3: Cross multiply
    72,024.63x = 108,036.95 × 19,434.12
  4. Step 4: Simplify right side
    72,024.63x = 2,099,603,050.73
  5. Step 5: Solve for x
    x = 2,099,603,050.73/72,024.63
  6. Step 6: Final answer
    x = 29,151.18

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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.