Home / 88,219.69-121,743.67-47,933.78

Finding the Fourth Proportional to 88,219.69, 121,743.67 and 47,933.78

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Solution

The fourth proportional to 88,219.69, 121,743.67 and 47,933.78 is: 66,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,219.69 : 121,743.67 = 47,933.78 : x
  2. Step 2: Convert to fraction form
    88,219.69/121,743.67 = 47,933.78/x
  3. Step 3: Cross multiply
    88,219.69x = 121,743.67 × 47,933.78
  4. Step 4: Simplify right side
    88,219.69x = 5,835,634,294.17
  5. Step 5: Solve for x
    x = 5,835,634,294.17/88,219.69
  6. Step 6: Final answer
    x = 66,148.89

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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.