Home / 78,485.37-117,570.24-36,306.24

Finding the Fourth Proportional to 78,485.37, 117,570.24 and 36,306.24

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Solution

The fourth proportional to 78,485.37, 117,570.24 and 36,306.24 is: 54,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,485.37 : 117,570.24 = 36,306.24 : x
  2. Step 2: Convert to fraction form
    78,485.37/117,570.24 = 36,306.24/x
  3. Step 3: Cross multiply
    78,485.37x = 117,570.24 × 36,306.24
  4. Step 4: Simplify right side
    78,485.37x = 4,268,533,350.30
  5. Step 5: Solve for x
    x = 4,268,533,350.30/78,485.37
  6. Step 6: Final answer
    x = 54,386.36

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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.