Home / 75,120.41-103,666.47-41,132.05

Finding the Fourth Proportional to 75,120.41, 103,666.47 and 41,132.05

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Solution

The fourth proportional to 75,120.41, 103,666.47 and 41,132.05 is: 56,762.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,120.41 : 103,666.47 = 41,132.05 : x
  2. Step 2: Convert to fraction form
    75,120.41/103,666.47 = 41,132.05/x
  3. Step 3: Cross multiply
    75,120.41x = 103,666.47 × 41,132.05
  4. Step 4: Simplify right side
    75,120.41x = 4,264,013,703.37
  5. Step 5: Solve for x
    x = 4,264,013,703.37/75,120.41
  6. Step 6: Final answer
    x = 56,762.39

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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.