Home / 76,436.60-114,428.10-56,802.20

Finding the Fourth Proportional to 76,436.60, 114,428.10 and 56,802.20

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Solution

The fourth proportional to 76,436.60, 114,428.10 and 56,802.20 is: 85,034.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,436.60 : 114,428.10 = 56,802.20 : x
  2. Step 2: Convert to fraction form
    76,436.60/114,428.10 = 56,802.20/x
  3. Step 3: Cross multiply
    76,436.60x = 114,428.10 × 56,802.20
  4. Step 4: Simplify right side
    76,436.60x = 6,499,767,821.82
  5. Step 5: Solve for x
    x = 6,499,767,821.82/76,436.60
  6. Step 6: Final answer
    x = 85,034.76

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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.