Home / 42,969.08-64,457.39-17,670.15

Finding the Fourth Proportional to 42,969.08, 64,457.39 and 17,670.15

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Solution

The fourth proportional to 42,969.08, 64,457.39 and 17,670.15 is: 26,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,969.08 : 64,457.39 = 17,670.15 : x
  2. Step 2: Convert to fraction form
    42,969.08/64,457.39 = 17,670.15/x
  3. Step 3: Cross multiply
    42,969.08x = 64,457.39 × 17,670.15
  4. Step 4: Simplify right side
    42,969.08x = 1,138,971,794.08
  5. Step 5: Solve for x
    x = 1,138,971,794.08/42,969.08
  6. Step 6: Final answer
    x = 26,506.77

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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.