Home / 56,667.90-78,203.40-31,172.96

Finding the Fourth Proportional to 56,667.90, 78,203.40 and 31,172.96

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Solution

The fourth proportional to 56,667.90, 78,203.40 and 31,172.96 is: 43,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,667.90 : 78,203.40 = 31,172.96 : x
  2. Step 2: Convert to fraction form
    56,667.90/78,203.40 = 31,172.96/x
  3. Step 3: Cross multiply
    56,667.90x = 78,203.40 × 31,172.96
  4. Step 4: Simplify right side
    56,667.90x = 2,437,831,460.06
  5. Step 5: Solve for x
    x = 2,437,831,460.06/56,667.90
  6. Step 6: Final answer
    x = 43,019.62

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1.5x scale

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.