Home / 57,180.48-78,948.36-35,678.76

Finding the Fourth Proportional to 57,180.48, 78,948.36 and 35,678.76

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Solution

The fourth proportional to 57,180.48, 78,948.36 and 35,678.76 is: 49,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,180.48 : 78,948.36 = 35,678.76 : x
  2. Step 2: Convert to fraction form
    57,180.48/78,948.36 = 35,678.76/x
  3. Step 3: Cross multiply
    57,180.48x = 78,948.36 × 35,678.76
  4. Step 4: Simplify right side
    57,180.48x = 2,816,779,588.83
  5. Step 5: Solve for x
    x = 2,816,779,588.83/57,180.48
  6. Step 6: Final answer
    x = 49,261.21

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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.