Home / 65,031.36-97,502.64-31,279.56

Finding the Fourth Proportional to 65,031.36, 97,502.64 and 31,279.56

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Solution

The fourth proportional to 65,031.36, 97,502.64 and 31,279.56 is: 46,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,031.36 : 97,502.64 = 31,279.56 : x
  2. Step 2: Convert to fraction form
    65,031.36/97,502.64 = 31,279.56/x
  3. Step 3: Cross multiply
    65,031.36x = 97,502.64 × 31,279.56
  4. Step 4: Simplify right side
    65,031.36x = 3,049,839,678.04
  5. Step 5: Solve for x
    x = 3,049,839,678.04/65,031.36
  6. Step 6: Final answer
    x = 46,897.98

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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.