Home / 57,379.14-79,161.09-42,307.56

Finding the Fourth Proportional to 57,379.14, 79,161.09 and 42,307.56

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Solution

The fourth proportional to 57,379.14, 79,161.09 and 42,307.56 is: 58,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,379.14 : 79,161.09 = 42,307.56 : x
  2. Step 2: Convert to fraction form
    57,379.14/79,161.09 = 42,307.56/x
  3. Step 3: Cross multiply
    57,379.14x = 79,161.09 × 42,307.56
  4. Step 4: Simplify right side
    57,379.14x = 3,349,112,564.84
  5. Step 5: Solve for x
    x = 3,349,112,564.84/57,379.14
  6. Step 6: Final answer
    x = 58,368.12

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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.