Home / 65,900.08-90,964.29-40,058.54

Finding the Fourth Proportional to 65,900.08, 90,964.29 and 40,058.54

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Solution

The fourth proportional to 65,900.08, 90,964.29 and 40,058.54 is: 55,294.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,900.08 : 90,964.29 = 40,058.54 : x
  2. Step 2: Convert to fraction form
    65,900.08/90,964.29 = 40,058.54/x
  3. Step 3: Cross multiply
    65,900.08x = 90,964.29 × 40,058.54
  4. Step 4: Simplify right side
    65,900.08x = 3,643,896,649.54
  5. Step 5: Solve for x
    x = 3,643,896,649.54/65,900.08
  6. Step 6: Final answer
    x = 55,294.27

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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.