Home / 55,372.10-76,420.80-31,494.17

Finding the Fourth Proportional to 55,372.10, 76,420.80 and 31,494.17

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Solution

The fourth proportional to 55,372.10, 76,420.80 and 31,494.17 is: 43,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,372.10 : 76,420.80 = 31,494.17 : x
  2. Step 2: Convert to fraction form
    55,372.10/76,420.80 = 31,494.17/x
  3. Step 3: Cross multiply
    55,372.10x = 76,420.80 × 31,494.17
  4. Step 4: Simplify right side
    55,372.10x = 2,406,809,284.63
  5. Step 5: Solve for x
    x = 2,406,809,284.63/55,372.10
  6. Step 6: Final answer
    x = 43,466.10

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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.