Home / 88,069.78-121,532.75-47,782.00

Finding the Fourth Proportional to 88,069.78, 121,532.75 and 47,782.00

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Solution

The fourth proportional to 88,069.78, 121,532.75 and 47,782.00 is: 65,937.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,069.78 : 121,532.75 = 47,782.00 : x
  2. Step 2: Convert to fraction form
    88,069.78/121,532.75 = 47,782.00/x
  3. Step 3: Cross multiply
    88,069.78x = 121,532.75 × 47,782.00
  4. Step 4: Simplify right side
    88,069.78x = 5,807,078,221.46
  5. Step 5: Solve for x
    x = 5,807,078,221.46/88,069.78
  6. Step 6: Final answer
    x = 65,937.24

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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.