Home / 75,123.67-103,666.72-41,125.64

Finding the Fourth Proportional to 75,123.67, 103,666.72 and 41,125.64

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Solution

The fourth proportional to 75,123.67, 103,666.72 and 41,125.64 is: 56,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,123.67 : 103,666.72 = 41,125.64 : x
  2. Step 2: Convert to fraction form
    75,123.67/103,666.72 = 41,125.64/x
  3. Step 3: Cross multiply
    75,123.67x = 103,666.72 × 41,125.64
  4. Step 4: Simplify right side
    75,123.67x = 4,263,360,001.07
  5. Step 5: Solve for x
    x = 4,263,360,001.07/75,123.67
  6. Step 6: Final answer
    x = 56,751.22

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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.