Home / 77,950.20-116,925.58-21,789.96

Finding the Fourth Proportional to 77,950.20, 116,925.58 and 21,789.96

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Solution

The fourth proportional to 77,950.20, 116,925.58 and 21,789.96 is: 32,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,950.20 : 116,925.58 = 21,789.96 : x
  2. Step 2: Convert to fraction form
    77,950.20/116,925.58 = 21,789.96/x
  3. Step 3: Cross multiply
    77,950.20x = 116,925.58 × 21,789.96
  4. Step 4: Simplify right side
    77,950.20x = 2,547,803,711.18
  5. Step 5: Solve for x
    x = 2,547,803,711.18/77,950.20
  6. Step 6: Final answer
    x = 32,685.02

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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.