Home / 92,983.20-128,349.73-55,257

Finding the Fourth Proportional to 92,983.20, 128,349.73 and 55,257

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Solution

The fourth proportional to 92,983.20, 128,349.73 and 55,257 is: 76,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,983.20 : 128,349.73 = 55,257 : x
  2. Step 2: Convert to fraction form
    92,983.20/128,349.73 = 55,257/x
  3. Step 3: Cross multiply
    92,983.20x = 128,349.73 × 55,257
  4. Step 4: Simplify right side
    92,983.20x = 7,092,221,030.61
  5. Step 5: Solve for x
    x = 7,092,221,030.61/92,983.20
  6. Step 6: Final answer
    x = 76,274.22

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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.