Home / 91,280.11-136,935.73-40,697.49

Finding the Fourth Proportional to 91,280.11, 136,935.73 and 40,697.49

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Solution

The fourth proportional to 91,280.11, 136,935.73 and 40,697.49 is: 61,053.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,280.11 : 136,935.73 = 40,697.49 : x
  2. Step 2: Convert to fraction form
    91,280.11/136,935.73 = 40,697.49/x
  3. Step 3: Cross multiply
    91,280.11x = 136,935.73 × 40,697.49
  4. Step 4: Simplify right side
    91,280.11x = 5,572,940,502.32
  5. Step 5: Solve for x
    x = 5,572,940,502.32/91,280.11
  6. Step 6: Final answer
    x = 61,053.17

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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.