Home / 56,242.12-77,611.08-31,090

Finding the Fourth Proportional to 56,242.12, 77,611.08 and 31,090

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Solution

The fourth proportional to 56,242.12, 77,611.08 and 31,090 is: 42,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,242.12 : 77,611.08 = 31,090 : x
  2. Step 2: Convert to fraction form
    56,242.12/77,611.08 = 31,090/x
  3. Step 3: Cross multiply
    56,242.12x = 77,611.08 × 31,090
  4. Step 4: Simplify right side
    56,242.12x = 2,412,928,477.20
  5. Step 5: Solve for x
    x = 2,412,928,477.20/56,242.12
  6. Step 6: Final answer
    x = 42,902.52

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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.