Home / 77,812.02-107,230.77-56,557.62

Finding the Fourth Proportional to 77,812.02, 107,230.77 and 56,557.62

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Solution

The fourth proportional to 77,812.02, 107,230.77 and 56,557.62 is: 77,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,812.02 : 107,230.77 = 56,557.62 : x
  2. Step 2: Convert to fraction form
    77,812.02/107,230.77 = 56,557.62/x
  3. Step 3: Cross multiply
    77,812.02x = 107,230.77 × 56,557.62
  4. Step 4: Simplify right side
    77,812.02x = 6,064,717,141.97
  5. Step 5: Solve for x
    x = 6,064,717,141.97/77,812.02
  6. Step 6: Final answer
    x = 77,940.62

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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.