Home / 56,813.10-78,407.91-34,159.47

Finding the Fourth Proportional to 56,813.10, 78,407.91 and 34,159.47

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Solution

The fourth proportional to 56,813.10, 78,407.91 and 34,159.47 is: 47,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,813.10 : 78,407.91 = 34,159.47 : x
  2. Step 2: Convert to fraction form
    56,813.10/78,407.91 = 34,159.47/x
  3. Step 3: Cross multiply
    56,813.10x = 78,407.91 × 34,159.47
  4. Step 4: Simplify right side
    56,813.10x = 2,678,372,649.41
  5. Step 5: Solve for x
    x = 2,678,372,649.41/56,813.10
  6. Step 6: Final answer
    x = 47,143.58

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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.