Home / 78,583.32-117,798.48-31,182.84

Finding the Fourth Proportional to 78,583.32, 117,798.48 and 31,182.84

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Solution

The fourth proportional to 78,583.32, 117,798.48 and 31,182.84 is: 46,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,583.32 : 117,798.48 = 31,182.84 : x
  2. Step 2: Convert to fraction form
    78,583.32/117,798.48 = 31,182.84/x
  3. Step 3: Cross multiply
    78,583.32x = 117,798.48 × 31,182.84
  4. Step 4: Simplify right side
    78,583.32x = 3,673,291,154.08
  5. Step 5: Solve for x
    x = 3,673,291,154.08/78,583.32
  6. Step 6: Final answer
    x = 46,743.90

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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.