Home / 76,318.93-114,483.86-20,158.47

Finding the Fourth Proportional to 76,318.93, 114,483.86 and 20,158.47

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Solution

The fourth proportional to 76,318.93, 114,483.86 and 20,158.47 is: 30,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,318.93 : 114,483.86 = 20,158.47 : x
  2. Step 2: Convert to fraction form
    76,318.93/114,483.86 = 20,158.47/x
  3. Step 3: Cross multiply
    76,318.93x = 114,483.86 × 20,158.47
  4. Step 4: Simplify right side
    76,318.93x = 2,307,819,785.82
  5. Step 5: Solve for x
    x = 2,307,819,785.82/76,318.93
  6. Step 6: Final answer
    x = 30,239.15

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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.