Home / 57,012.13-78,678.95-37,858.87

Finding the Fourth Proportional to 57,012.13, 78,678.95 and 37,858.87

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Solution

The fourth proportional to 57,012.13, 78,678.95 and 37,858.87 is: 52,246.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,012.13 : 78,678.95 = 37,858.87 : x
  2. Step 2: Convert to fraction form
    57,012.13/78,678.95 = 37,858.87/x
  3. Step 3: Cross multiply
    57,012.13x = 78,678.95 × 37,858.87
  4. Step 4: Simplify right side
    57,012.13x = 2,978,696,483.08
  5. Step 5: Solve for x
    x = 2,978,696,483.08/57,012.13
  6. Step 6: Final answer
    x = 52,246.72

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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.