Home / 79,494.12-109,701.86-43,686.45

Finding the Fourth Proportional to 79,494.12, 109,701.86 and 43,686.45

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Solution

The fourth proportional to 79,494.12, 109,701.86 and 43,686.45 is: 60,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,494.12 : 109,701.86 = 43,686.45 : x
  2. Step 2: Convert to fraction form
    79,494.12/109,701.86 = 43,686.45/x
  3. Step 3: Cross multiply
    79,494.12x = 109,701.86 × 43,686.45
  4. Step 4: Simplify right side
    79,494.12x = 4,792,484,603.36
  5. Step 5: Solve for x
    x = 4,792,484,603.36/79,494.12
  6. Step 6: Final answer
    x = 60,287.28

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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.