Home / 76,514.16-114,762.08-20,358.40

Finding the Fourth Proportional to 76,514.16, 114,762.08 and 20,358.40

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Solution

The fourth proportional to 76,514.16, 114,762.08 and 20,358.40 is: 30,535.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,514.16 : 114,762.08 = 20,358.40 : x
  2. Step 2: Convert to fraction form
    76,514.16/114,762.08 = 20,358.40/x
  3. Step 3: Cross multiply
    76,514.16x = 114,762.08 × 20,358.40
  4. Step 4: Simplify right side
    76,514.16x = 2,336,372,329.47
  5. Step 5: Solve for x
    x = 2,336,372,329.47/76,514.16
  6. Step 6: Final answer
    x = 30,535.16

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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.