Home / 51,891.76-71,589.40-38,312.32

Finding the Fourth Proportional to 51,891.76, 71,589.40 and 38,312.32

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Solution

The fourth proportional to 51,891.76, 71,589.40 and 38,312.32 is: 52,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,891.76 : 71,589.40 = 38,312.32 : x
  2. Step 2: Convert to fraction form
    51,891.76/71,589.40 = 38,312.32/x
  3. Step 3: Cross multiply
    51,891.76x = 71,589.40 × 38,312.32
  4. Step 4: Simplify right side
    51,891.76x = 2,742,756,001.41
  5. Step 5: Solve for x
    x = 2,742,756,001.41/51,891.76
  6. Step 6: Final answer
    x = 52,855.33

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1.5x scale

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.