Home / 78,453.93-108,268.53-42,646.35

Finding the Fourth Proportional to 78,453.93, 108,268.53 and 42,646.35

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Solution

The fourth proportional to 78,453.93, 108,268.53 and 42,646.35 is: 58,853.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,453.93 : 108,268.53 = 42,646.35 : x
  2. Step 2: Convert to fraction form
    78,453.93/108,268.53 = 42,646.35/x
  3. Step 3: Cross multiply
    78,453.93x = 108,268.53 × 42,646.35
  4. Step 4: Simplify right side
    78,453.93x = 4,617,257,624.37
  5. Step 5: Solve for x
    x = 4,617,257,624.37/78,453.93
  6. Step 6: Final answer
    x = 58,853.11

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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.