Home / 74,635.65-102,997.04-40,643.60

Finding the Fourth Proportional to 74,635.65, 102,997.04 and 40,643.60

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Solution

The fourth proportional to 74,635.65, 102,997.04 and 40,643.60 is: 56,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,635.65 : 102,997.04 = 40,643.60 : x
  2. Step 2: Convert to fraction form
    74,635.65/102,997.04 = 40,643.60/x
  3. Step 3: Cross multiply
    74,635.65x = 102,997.04 × 40,643.60
  4. Step 4: Simplify right side
    74,635.65x = 4,186,169,776.74
  5. Step 5: Solve for x
    x = 4,186,169,776.74/74,635.65
  6. Step 6: Final answer
    x = 56,088.07

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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.