Home / 42,668.16-64,014.54-13,090.35

Finding the Fourth Proportional to 42,668.16, 64,014.54 and 13,090.35

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Solution

The fourth proportional to 42,668.16, 64,014.54 and 13,090.35 is: 19,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,668.16 : 64,014.54 = 13,090.35 : x
  2. Step 2: Convert to fraction form
    42,668.16/64,014.54 = 13,090.35/x
  3. Step 3: Cross multiply
    42,668.16x = 64,014.54 × 13,090.35
  4. Step 4: Simplify right side
    42,668.16x = 837,972,733.69
  5. Step 5: Solve for x
    x = 837,972,733.69/42,668.16
  6. Step 6: Final answer
    x = 19,639.30

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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.