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Finding the Fourth Proportional to 53,158.48, 79,745.51 and 19,426.17

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Solution

The fourth proportional to 53,158.48, 79,745.51 and 19,426.17 is: 29,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,158.48 : 79,745.51 = 19,426.17 : x
  2. Step 2: Convert to fraction form
    53,158.48/79,745.51 = 19,426.17/x
  3. Step 3: Cross multiply
    53,158.48x = 79,745.51 × 19,426.17
  4. Step 4: Simplify right side
    53,158.48x = 1,549,149,834.00
  5. Step 5: Solve for x
    x = 1,549,149,834.00/53,158.48
  6. Step 6: Final answer
    x = 29,142.10

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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.