Home / 58,307.29-87,468.06-20,871.31

Finding the Fourth Proportional to 58,307.29, 87,468.06 and 20,871.31

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Solution

The fourth proportional to 58,307.29, 87,468.06 and 20,871.31 is: 31,309.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,307.29 : 87,468.06 = 20,871.31 : x
  2. Step 2: Convert to fraction form
    58,307.29/87,468.06 = 20,871.31/x
  3. Step 3: Cross multiply
    58,307.29x = 87,468.06 × 20,871.31
  4. Step 4: Simplify right side
    58,307.29x = 1,825,572,995.36
  5. Step 5: Solve for x
    x = 1,825,572,995.36/58,307.29
  6. Step 6: Final answer
    x = 31,309.52

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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.