Home / 78,466.19-108,281.03-44,477.80

Finding the Fourth Proportional to 78,466.19, 108,281.03 and 44,477.80

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Solution

The fourth proportional to 78,466.19, 108,281.03 and 44,477.80 is: 61,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,466.19 : 108,281.03 = 44,477.80 : x
  2. Step 2: Convert to fraction form
    78,466.19/108,281.03 = 44,477.80/x
  3. Step 3: Cross multiply
    78,466.19x = 108,281.03 × 44,477.80
  4. Step 4: Simplify right side
    78,466.19x = 4,816,101,503.04
  5. Step 5: Solve for x
    x = 4,816,101,503.04/78,466.19
  6. Step 6: Final answer
    x = 61,378.05

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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.