Home / 76,680.81-115,038.54-23,377.59

Finding the Fourth Proportional to 76,680.81, 115,038.54 and 23,377.59

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Solution

The fourth proportional to 76,680.81, 115,038.54 and 23,377.59 is: 35,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,680.81 : 115,038.54 = 23,377.59 : x
  2. Step 2: Convert to fraction form
    76,680.81/115,038.54 = 23,377.59/x
  3. Step 3: Cross multiply
    76,680.81x = 115,038.54 × 23,377.59
  4. Step 4: Simplify right side
    76,680.81x = 2,689,323,822.32
  5. Step 5: Solve for x
    x = 2,689,323,822.32/76,680.81
  6. Step 6: Final answer
    x = 35,071.67

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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.