Home / 56,811.98-78,406.36-34,158.35

Finding the Fourth Proportional to 56,811.98, 78,406.36 and 34,158.35

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Solution

The fourth proportional to 56,811.98, 78,406.36 and 34,158.35 is: 47,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,811.98 : 78,406.36 = 34,158.35 : x
  2. Step 2: Convert to fraction form
    56,811.98/78,406.36 = 34,158.35/x
  3. Step 3: Cross multiply
    56,811.98x = 78,406.36 × 34,158.35
  4. Step 4: Simplify right side
    56,811.98x = 2,678,231,409.68
  5. Step 5: Solve for x
    x = 2,678,231,409.68/56,811.98
  6. Step 6: Final answer
    x = 47,142.02

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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.