Home / 56,985.35-78,642.52-34,331.45

Finding the Fourth Proportional to 56,985.35, 78,642.52 and 34,331.45

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Solution

The fourth proportional to 56,985.35, 78,642.52 and 34,331.45 is: 47,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,985.35 : 78,642.52 = 34,331.45 : x
  2. Step 2: Convert to fraction form
    56,985.35/78,642.52 = 34,331.45/x
  3. Step 3: Cross multiply
    56,985.35x = 78,642.52 × 34,331.45
  4. Step 4: Simplify right side
    56,985.35x = 2,699,911,264.21
  5. Step 5: Solve for x
    x = 2,699,911,264.21/56,985.35
  6. Step 6: Final answer
    x = 47,379.05

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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.