Home / 55,318.30-76,345.77-31,448.53

Finding the Fourth Proportional to 55,318.30, 76,345.77 and 31,448.53

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Solution

The fourth proportional to 55,318.30, 76,345.77 and 31,448.53 is: 43,402.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,318.30 : 76,345.77 = 31,448.53 : x
  2. Step 2: Convert to fraction form
    55,318.30/76,345.77 = 31,448.53/x
  3. Step 3: Cross multiply
    55,318.30x = 76,345.77 × 31,448.53
  4. Step 4: Simplify right side
    55,318.30x = 2,400,962,238.22
  5. Step 5: Solve for x
    x = 2,400,962,238.22/55,318.30
  6. Step 6: Final answer
    x = 43,402.68

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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.