Home / 77,730.12-116,618.99-39,806.24

Finding the Fourth Proportional to 77,730.12, 116,618.99 and 39,806.24

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Solution

The fourth proportional to 77,730.12, 116,618.99 and 39,806.24 is: 59,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,730.12 : 116,618.99 = 39,806.24 : x
  2. Step 2: Convert to fraction form
    77,730.12/116,618.99 = 39,806.24/x
  3. Step 3: Cross multiply
    77,730.12x = 116,618.99 × 39,806.24
  4. Step 4: Simplify right side
    77,730.12x = 4,642,163,504.50
  5. Step 5: Solve for x
    x = 4,642,163,504.50/77,730.12
  6. Step 6: Final answer
    x = 59,721.55

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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.