Home / 56,812.14-78,397.22-31,317.19

Finding the Fourth Proportional to 56,812.14, 78,397.22 and 31,317.19

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Solution

The fourth proportional to 56,812.14, 78,397.22 and 31,317.19 is: 43,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,812.14 : 78,397.22 = 31,317.19 : x
  2. Step 2: Convert to fraction form
    56,812.14/78,397.22 = 31,317.19/x
  3. Step 3: Cross multiply
    56,812.14x = 78,397.22 × 31,317.19
  4. Step 4: Simplify right side
    56,812.14x = 2,455,180,634.21
  5. Step 5: Solve for x
    x = 2,455,180,634.21/56,812.14
  6. Step 6: Final answer
    x = 43,215.77

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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.