Home / 78,795.36-108,726.84-45,261.36

Finding the Fourth Proportional to 78,795.36, 108,726.84 and 45,261.36

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Solution

The fourth proportional to 78,795.36, 108,726.84 and 45,261.36 is: 62,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,795.36 : 108,726.84 = 45,261.36 : x
  2. Step 2: Convert to fraction form
    78,795.36/108,726.84 = 45,261.36/x
  3. Step 3: Cross multiply
    78,795.36x = 108,726.84 × 45,261.36
  4. Step 4: Simplify right side
    78,795.36x = 4,921,124,646.90
  5. Step 5: Solve for x
    x = 4,921,124,646.90/78,795.36
  6. Step 6: Final answer
    x = 62,454.50

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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.