Home / 76,012.67-104,888.40-42,016.57

Finding the Fourth Proportional to 76,012.67, 104,888.40 and 42,016.57

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Solution

The fourth proportional to 76,012.67, 104,888.40 and 42,016.57 is: 57,977.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,012.67 : 104,888.40 = 42,016.57 : x
  2. Step 2: Convert to fraction form
    76,012.67/104,888.40 = 42,016.57/x
  3. Step 3: Cross multiply
    76,012.67x = 104,888.40 × 42,016.57
  4. Step 4: Simplify right side
    76,012.67x = 4,407,050,276.35
  5. Step 5: Solve for x
    x = 4,407,050,276.35/76,012.67
  6. Step 6: Final answer
    x = 57,977.84

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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.