Home / 71,946.89-99,283.06-40,109.63

Finding the Fourth Proportional to 71,946.89, 99,283.06 and 40,109.63

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Solution

The fourth proportional to 71,946.89, 99,283.06 and 40,109.63 is: 55,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,946.89 : 99,283.06 = 40,109.63 : x
  2. Step 2: Convert to fraction form
    71,946.89/99,283.06 = 40,109.63/x
  3. Step 3: Cross multiply
    71,946.89x = 99,283.06 × 40,109.63
  4. Step 4: Simplify right side
    71,946.89x = 3,982,206,801.87
  5. Step 5: Solve for x
    x = 3,982,206,801.87/71,946.89
  6. Step 6: Final answer
    x = 55,349.26

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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.