Home / 56,464.18-77,918.61-31,316.02

Finding the Fourth Proportional to 56,464.18, 77,918.61 and 31,316.02

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Solution

The fourth proportional to 56,464.18, 77,918.61 and 31,316.02 is: 43,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,464.18 : 77,918.61 = 31,316.02 : x
  2. Step 2: Convert to fraction form
    56,464.18/77,918.61 = 31,316.02/x
  3. Step 3: Cross multiply
    56,464.18x = 77,918.61 × 31,316.02
  4. Step 4: Simplify right side
    56,464.18x = 2,440,100,749.13
  5. Step 5: Solve for x
    x = 2,440,100,749.13/56,464.18
  6. Step 6: Final answer
    x = 43,215.02

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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.