Home / 76,155.76-105,133.08-47,877.04

Finding the Fourth Proportional to 76,155.76, 105,133.08 and 47,877.04

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Solution

The fourth proportional to 76,155.76, 105,133.08 and 47,877.04 is: 66,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,155.76 : 105,133.08 = 47,877.04 : x
  2. Step 2: Convert to fraction form
    76,155.76/105,133.08 = 47,877.04/x
  3. Step 3: Cross multiply
    76,155.76x = 105,133.08 × 47,877.04
  4. Step 4: Simplify right side
    76,155.76x = 5,033,460,676.48
  5. Step 5: Solve for x
    x = 5,033,460,676.48/76,155.76
  6. Step 6: Final answer
    x = 66,094.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.