Home / 78,277.53-117,268.67-60,661.25

Finding the Fourth Proportional to 78,277.53, 117,268.67 and 60,661.25

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Solution

The fourth proportional to 78,277.53, 117,268.67 and 60,661.25 is: 90,877.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,277.53 : 117,268.67 = 60,661.25 : x
  2. Step 2: Convert to fraction form
    78,277.53/117,268.67 = 60,661.25/x
  3. Step 3: Cross multiply
    78,277.53x = 117,268.67 × 60,661.25
  4. Step 4: Simplify right side
    78,277.53x = 7,113,663,673.35
  5. Step 5: Solve for x
    x = 7,113,663,673.35/78,277.53
  6. Step 6: Final answer
    x = 90,877.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.