Home / 56,513.52-77,988.96-31,363.08

Finding the Fourth Proportional to 56,513.52, 77,988.96 and 31,363.08

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Solution

The fourth proportional to 56,513.52, 77,988.96 and 31,363.08 is: 43,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,513.52 : 77,988.96 = 31,363.08 : x
  2. Step 2: Convert to fraction form
    56,513.52/77,988.96 = 31,363.08/x
  3. Step 3: Cross multiply
    56,513.52x = 77,988.96 × 31,363.08
  4. Step 4: Simplify right side
    56,513.52x = 2,445,973,991.60
  5. Step 5: Solve for x
    x = 2,445,973,991.60/56,513.52
  6. Step 6: Final answer
    x = 43,281.22

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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.