Home / 53,000.91-73,143.18-29,129.40

Finding the Fourth Proportional to 53,000.91, 73,143.18 and 29,129.40

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Solution

The fourth proportional to 53,000.91, 73,143.18 and 29,129.40 is: 40,199.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,000.91 : 73,143.18 = 29,129.40 : x
  2. Step 2: Convert to fraction form
    53,000.91/73,143.18 = 29,129.40/x
  3. Step 3: Cross multiply
    53,000.91x = 73,143.18 × 29,129.40
  4. Step 4: Simplify right side
    53,000.91x = 2,130,616,947.49
  5. Step 5: Solve for x
    x = 2,130,616,947.49/53,000.91
  6. Step 6: Final answer
    x = 40,199.63

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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.