Home / 70,862.10-97,789.69-39,031.00

Finding the Fourth Proportional to 70,862.10, 97,789.69 and 39,031.00

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Solution

The fourth proportional to 70,862.10, 97,789.69 and 39,031.00 is: 53,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,862.10 : 97,789.69 = 39,031.00 : x
  2. Step 2: Convert to fraction form
    70,862.10/97,789.69 = 39,031.00/x
  3. Step 3: Cross multiply
    70,862.10x = 97,789.69 × 39,031.00
  4. Step 4: Simplify right side
    70,862.10x = 3,816,829,048.34
  5. Step 5: Solve for x
    x = 3,816,829,048.34/70,862.10
  6. Step 6: Final answer
    x = 53,862.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.