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Finding the Fourth Proportional to 76,191.40, 114,416.70 and 56,492.20

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Solution

The fourth proportional to 76,191.40, 114,416.70 and 56,492.20 is: 84,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,191.40 : 114,416.70 = 56,492.20 : x
  2. Step 2: Convert to fraction form
    76,191.40/114,416.70 = 56,492.20/x
  3. Step 3: Cross multiply
    76,191.40x = 114,416.70 × 56,492.20
  4. Step 4: Simplify right side
    76,191.40x = 6,463,651,099.74
  5. Step 5: Solve for x
    x = 6,463,651,099.74/76,191.40
  6. Step 6: Final answer
    x = 84,834.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.