Home / 49,678.72-74,518.68-19,700.32

Finding the Fourth Proportional to 49,678.72, 74,518.68 and 19,700.32

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Solution

The fourth proportional to 49,678.72, 74,518.68 and 19,700.32 is: 29,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,678.72 : 74,518.68 = 19,700.32 : x
  2. Step 2: Convert to fraction form
    49,678.72/74,518.68 = 19,700.32/x
  3. Step 3: Cross multiply
    49,678.72x = 74,518.68 × 19,700.32
  4. Step 4: Simplify right side
    49,678.72x = 1,468,041,841.98
  5. Step 5: Solve for x
    x = 1,468,041,841.98/49,678.72
  6. Step 6: Final answer
    x = 29,550.72

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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.