Home / 40,140.77-55,343.93-25,775.21

Finding the Fourth Proportional to 40,140.77, 55,343.93 and 25,775.21

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Solution

The fourth proportional to 40,140.77, 55,343.93 and 25,775.21 is: 35,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.77 : 55,343.93 = 25,775.21 : x
  2. Step 2: Convert to fraction form
    40,140.77/55,343.93 = 25,775.21/x
  3. Step 3: Cross multiply
    40,140.77x = 55,343.93 × 25,775.21
  4. Step 4: Simplify right side
    40,140.77x = 1,426,501,427.46
  5. Step 5: Solve for x
    x = 1,426,501,427.46/40,140.77
  6. Step 6: Final answer
    x = 35,537.47

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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.