Home / 65,903.08-90,968.43-40,061.54

Finding the Fourth Proportional to 65,903.08, 90,968.43 and 40,061.54

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Solution

The fourth proportional to 65,903.08, 90,968.43 and 40,061.54 is: 55,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,903.08 : 90,968.43 = 40,061.54 : x
  2. Step 2: Convert to fraction form
    65,903.08/90,968.43 = 40,061.54/x
  3. Step 3: Cross multiply
    65,903.08x = 90,968.43 × 40,061.54
  4. Step 4: Simplify right side
    65,903.08x = 3,644,335,397.18
  5. Step 5: Solve for x
    x = 3,644,335,397.18/65,903.08
  6. Step 6: Final answer
    x = 55,298.41

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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.