Home / 77,774.16-116,632.26-61,166.64

Finding the Fourth Proportional to 77,774.16, 116,632.26 and 61,166.64

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Solution

The fourth proportional to 77,774.16, 116,632.26 and 61,166.64 is: 91,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,774.16 : 116,632.26 = 61,166.64 : x
  2. Step 2: Convert to fraction form
    77,774.16/116,632.26 = 61,166.64/x
  3. Step 3: Cross multiply
    77,774.16x = 116,632.26 × 61,166.64
  4. Step 4: Simplify right side
    77,774.16x = 7,134,003,459.81
  5. Step 5: Solve for x
    x = 7,134,003,459.81/77,774.16
  6. Step 6: Final answer
    x = 91,727.17

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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.