Home / 79,622.19-119,437.47-20,458.26

Finding the Fourth Proportional to 79,622.19, 119,437.47 and 20,458.26

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Solution

The fourth proportional to 79,622.19, 119,437.47 and 20,458.26 is: 30,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,622.19 : 119,437.47 = 20,458.26 : x
  2. Step 2: Convert to fraction form
    79,622.19/119,437.47 = 20,458.26/x
  3. Step 3: Cross multiply
    79,622.19x = 119,437.47 × 20,458.26
  4. Step 4: Simplify right side
    79,622.19x = 2,443,482,815.00
  5. Step 5: Solve for x
    x = 2,443,482,815.00/79,622.19
  6. Step 6: Final answer
    x = 30,688.47

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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.