Home / 88,141.61-121,635.52-47,855.36

Finding the Fourth Proportional to 88,141.61, 121,635.52 and 47,855.36

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Solution

The fourth proportional to 88,141.61, 121,635.52 and 47,855.36 is: 66,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,141.61 : 121,635.52 = 47,855.36 : x
  2. Step 2: Convert to fraction form
    88,141.61/121,635.52 = 47,855.36/x
  3. Step 3: Cross multiply
    88,141.61x = 121,635.52 × 47,855.36
  4. Step 4: Simplify right side
    88,141.61x = 5,820,911,782.84
  5. Step 5: Solve for x
    x = 5,820,911,782.84/88,141.61
  6. Step 6: Final answer
    x = 66,040.45

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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.