Home / 77,817.42-116,762.58-38,353.02

Finding the Fourth Proportional to 77,817.42, 116,762.58 and 38,353.02

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Solution

The fourth proportional to 77,817.42, 116,762.58 and 38,353.02 is: 57,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,817.42 : 116,762.58 = 38,353.02 : x
  2. Step 2: Convert to fraction form
    77,817.42/116,762.58 = 38,353.02/x
  3. Step 3: Cross multiply
    77,817.42x = 116,762.58 × 38,353.02
  4. Step 4: Simplify right side
    77,817.42x = 4,478,197,565.99
  5. Step 5: Solve for x
    x = 4,478,197,565.99/77,817.42
  6. Step 6: Final answer
    x = 57,547.49

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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.