Home / 42,128.02-58,163.98-26,218.90

Finding the Fourth Proportional to 42,128.02, 58,163.98 and 26,218.90

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Solution

The fourth proportional to 42,128.02, 58,163.98 and 26,218.90 is: 36,199.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,128.02 : 58,163.98 = 26,218.90 : x
  2. Step 2: Convert to fraction form
    42,128.02/58,163.98 = 26,218.90/x
  3. Step 3: Cross multiply
    42,128.02x = 58,163.98 × 26,218.90
  4. Step 4: Simplify right side
    42,128.02x = 1,524,995,575.22
  5. Step 5: Solve for x
    x = 1,524,995,575.22/42,128.02
  6. Step 6: Final answer
    x = 36,199.08

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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.