Home / 77,345.69-116,033.11-30,602.21

Finding the Fourth Proportional to 77,345.69, 116,033.11 and 30,602.21

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Solution

The fourth proportional to 77,345.69, 116,033.11 and 30,602.21 is: 45,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,345.69 : 116,033.11 = 30,602.21 : x
  2. Step 2: Convert to fraction form
    77,345.69/116,033.11 = 30,602.21/x
  3. Step 3: Cross multiply
    77,345.69x = 116,033.11 × 30,602.21
  4. Step 4: Simplify right side
    77,345.69x = 3,550,868,942.50
  5. Step 5: Solve for x
    x = 3,550,868,942.50/77,345.69
  6. Step 6: Final answer
    x = 45,909.08

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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.