Home / 88,147.58-121,643.10-47,861.01

Finding the Fourth Proportional to 88,147.58, 121,643.10 and 47,861.01

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Solution

The fourth proportional to 88,147.58, 121,643.10 and 47,861.01 is: 66,047.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,147.58 : 121,643.10 = 47,861.01 : x
  2. Step 2: Convert to fraction form
    88,147.58/121,643.10 = 47,861.01/x
  3. Step 3: Cross multiply
    88,147.58x = 121,643.10 × 47,861.01
  4. Step 4: Simplify right side
    88,147.58x = 5,821,961,625.53
  5. Step 5: Solve for x
    x = 5,821,961,625.53/88,147.58
  6. Step 6: Final answer
    x = 66,047.89

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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.