Home / 77,281.23-115,771.44-56,981.01

Finding the Fourth Proportional to 77,281.23, 115,771.44 and 56,981.01

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Solution

The fourth proportional to 77,281.23, 115,771.44 and 56,981.01 is: 85,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,281.23 : 115,771.44 = 56,981.01 : x
  2. Step 2: Convert to fraction form
    77,281.23/115,771.44 = 56,981.01/x
  3. Step 3: Cross multiply
    77,281.23x = 115,771.44 × 56,981.01
  4. Step 4: Simplify right side
    77,281.23x = 6,596,773,580.35
  5. Step 5: Solve for x
    x = 6,596,773,580.35/77,281.23
  6. Step 6: Final answer
    x = 85,360.62

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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.