Home / 64,931.40-97,396.10-53,814.62

Finding the Fourth Proportional to 64,931.40, 97,396.10 and 53,814.62

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Solution

The fourth proportional to 64,931.40, 97,396.10 and 53,814.62 is: 80,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,931.40 : 97,396.10 = 53,814.62 : x
  2. Step 2: Convert to fraction form
    64,931.40/97,396.10 = 53,814.62/x
  3. Step 3: Cross multiply
    64,931.40x = 97,396.10 × 53,814.62
  4. Step 4: Simplify right side
    64,931.40x = 5,241,333,354.93
  5. Step 5: Solve for x
    x = 5,241,333,354.93/64,931.40
  6. Step 6: Final answer
    x = 80,721.09

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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.