Home / 56,390.27-77,640.99-47,875.55

Finding the Fourth Proportional to 56,390.27, 77,640.99 and 47,875.55

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Solution

The fourth proportional to 56,390.27, 77,640.99 and 47,875.55 is: 65,917.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,390.27 : 77,640.99 = 47,875.55 : x
  2. Step 2: Convert to fraction form
    56,390.27/77,640.99 = 47,875.55/x
  3. Step 3: Cross multiply
    56,390.27x = 77,640.99 × 47,875.55
  4. Step 4: Simplify right side
    56,390.27x = 3,717,104,710.59
  5. Step 5: Solve for x
    x = 3,717,104,710.59/56,390.27
  6. Step 6: Final answer
    x = 65,917.49

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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.