Home / 79,141.16-118,707.50-19,977.34

Finding the Fourth Proportional to 79,141.16, 118,707.50 and 19,977.34

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Solution

The fourth proportional to 79,141.16, 118,707.50 and 19,977.34 is: 29,964.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,141.16 : 118,707.50 = 19,977.34 : x
  2. Step 2: Convert to fraction form
    79,141.16/118,707.50 = 19,977.34/x
  3. Step 3: Cross multiply
    79,141.16x = 118,707.50 × 19,977.34
  4. Step 4: Simplify right side
    79,141.16x = 2,371,460,088.05
  5. Step 5: Solve for x
    x = 2,371,460,088.05/79,141.16
  6. Step 6: Final answer
    x = 29,964.94

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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.