Home / 76,486.28-105,492.66-55,335.56

Finding the Fourth Proportional to 76,486.28, 105,492.66 and 55,335.56

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Solution

The fourth proportional to 76,486.28, 105,492.66 and 55,335.56 is: 76,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,486.28 : 105,492.66 = 55,335.56 : x
  2. Step 2: Convert to fraction form
    76,486.28/105,492.66 = 55,335.56/x
  3. Step 3: Cross multiply
    76,486.28x = 105,492.66 × 55,335.56
  4. Step 4: Simplify right side
    76,486.28x = 5,837,495,416.99
  5. Step 5: Solve for x
    x = 5,837,495,416.99/76,486.28
  6. Step 6: Final answer
    x = 76,320.82

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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.