Home / 77,926.80-116,890.20-74,816.40

Finding the Fourth Proportional to 77,926.80, 116,890.20 and 74,816.40

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Solution

The fourth proportional to 77,926.80, 116,890.20 and 74,816.40 is: 112,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,926.80 : 116,890.20 = 74,816.40 : x
  2. Step 2: Convert to fraction form
    77,926.80/116,890.20 = 74,816.40/x
  3. Step 3: Cross multiply
    77,926.80x = 116,890.20 × 74,816.40
  4. Step 4: Simplify right side
    77,926.80x = 8,745,303,959.28
  5. Step 5: Solve for x
    x = 8,745,303,959.28/77,926.80
  6. Step 6: Final answer
    x = 112,224.60

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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.