Home / 56,239.04-77,611.44-31,090.16

Finding the Fourth Proportional to 56,239.04, 77,611.44 and 31,090.16

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Solution

The fourth proportional to 56,239.04, 77,611.44 and 31,090.16 is: 42,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,239.04 : 77,611.44 = 31,090.16 : x
  2. Step 2: Convert to fraction form
    56,239.04/77,611.44 = 31,090.16/x
  3. Step 3: Cross multiply
    56,239.04x = 77,611.44 × 31,090.16
  4. Step 4: Simplify right side
    56,239.04x = 2,412,952,087.43
  5. Step 5: Solve for x
    x = 2,412,952,087.43/56,239.04
  6. Step 6: Final answer
    x = 42,905.29

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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.