Home / 55,335.73-76,358.16-31,457.74

Finding the Fourth Proportional to 55,335.73, 76,358.16 and 31,457.74

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Solution

The fourth proportional to 55,335.73, 76,358.16 and 31,457.74 is: 43,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,335.73 : 76,358.16 = 31,457.74 : x
  2. Step 2: Convert to fraction form
    55,335.73/76,358.16 = 31,457.74/x
  3. Step 3: Cross multiply
    55,335.73x = 76,358.16 × 31,457.74
  4. Step 4: Simplify right side
    55,335.73x = 2,402,055,144.16
  5. Step 5: Solve for x
    x = 2,402,055,144.16/55,335.73
  6. Step 6: Final answer
    x = 43,408.75

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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.