Home / 77,647.24-116,387.80-40,169.58

Finding the Fourth Proportional to 77,647.24, 116,387.80 and 40,169.58

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Solution

The fourth proportional to 77,647.24, 116,387.80 and 40,169.58 is: 60,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,647.24 : 116,387.80 = 40,169.58 : x
  2. Step 2: Convert to fraction form
    77,647.24/116,387.80 = 40,169.58/x
  3. Step 3: Cross multiply
    77,647.24x = 116,387.80 × 40,169.58
  4. Step 4: Simplify right side
    77,647.24x = 4,675,249,043.12
  5. Step 5: Solve for x
    x = 4,675,249,043.12/77,647.24
  6. Step 6: Final answer
    x = 60,211.40

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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.