Home / 55,004.21-75,903.51-31,132.20

Finding the Fourth Proportional to 55,004.21, 75,903.51 and 31,132.20

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Solution

The fourth proportional to 55,004.21, 75,903.51 and 31,132.20 is: 42,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004.21 : 75,903.51 = 31,132.20 : x
  2. Step 2: Convert to fraction form
    55,004.21/75,903.51 = 31,132.20/x
  3. Step 3: Cross multiply
    55,004.21x = 75,903.51 × 31,132.20
  4. Step 4: Simplify right side
    55,004.21x = 2,363,043,254.02
  5. Step 5: Solve for x
    x = 2,363,043,254.02/55,004.21
  6. Step 6: Final answer
    x = 42,961.13

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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.