Home / 77,689.41-116,534.12-30,975.09

Finding the Fourth Proportional to 77,689.41, 116,534.12 and 30,975.09

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Solution

The fourth proportional to 77,689.41, 116,534.12 and 30,975.09 is: 46,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,689.41 : 116,534.12 = 30,975.09 : x
  2. Step 2: Convert to fraction form
    77,689.41/116,534.12 = 30,975.09/x
  3. Step 3: Cross multiply
    77,689.41x = 116,534.12 × 30,975.09
  4. Step 4: Simplify right side
    77,689.41x = 3,609,654,855.07
  5. Step 5: Solve for x
    x = 3,609,654,855.07/77,689.41
  6. Step 6: Final answer
    x = 46,462.64

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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.