Home / 42,946.43-64,421.45-11,781.68

Finding the Fourth Proportional to 42,946.43, 64,421.45 and 11,781.68

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Solution

The fourth proportional to 42,946.43, 64,421.45 and 11,781.68 is: 17,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,946.43 : 64,421.45 = 11,781.68 : x
  2. Step 2: Convert to fraction form
    42,946.43/64,421.45 = 11,781.68/x
  3. Step 3: Cross multiply
    42,946.43x = 64,421.45 × 11,781.68
  4. Step 4: Simplify right side
    42,946.43x = 758,992,528.02
  5. Step 5: Solve for x
    x = 758,992,528.02/42,946.43
  6. Step 6: Final answer
    x = 17,673.01

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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.