Home / 72,044.52-99,412.29-40,214.76

Finding the Fourth Proportional to 72,044.52, 99,412.29 and 40,214.76

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Solution

The fourth proportional to 72,044.52, 99,412.29 and 40,214.76 is: 55,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,044.52 : 99,412.29 = 40,214.76 : x
  2. Step 2: Convert to fraction form
    72,044.52/99,412.29 = 40,214.76/x
  3. Step 3: Cross multiply
    72,044.52x = 99,412.29 × 40,214.76
  4. Step 4: Simplify right side
    72,044.52x = 3,997,841,383.40
  5. Step 5: Solve for x
    x = 3,997,841,383.40/72,044.52
  6. Step 6: Final answer
    x = 55,491.26

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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.