Home / 77,817.62-116,762.86-38,353.20

Finding the Fourth Proportional to 77,817.62, 116,762.86 and 38,353.20

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Solution

The fourth proportional to 77,817.62, 116,762.86 and 38,353.20 is: 57,547.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,817.62 : 116,762.86 = 38,353.20 : x
  2. Step 2: Convert to fraction form
    77,817.62/116,762.86 = 38,353.20/x
  3. Step 3: Cross multiply
    77,817.62x = 116,762.86 × 38,353.20
  4. Step 4: Simplify right side
    77,817.62x = 4,478,229,322.15
  5. Step 5: Solve for x
    x = 4,478,229,322.15/77,817.62
  6. Step 6: Final answer
    x = 57,547.75

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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.