Home / 48,719.71-72,868.42-28,681.44

Finding the Fourth Proportional to 48,719.71, 72,868.42 and 28,681.44

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Solution

The fourth proportional to 48,719.71, 72,868.42 and 28,681.44 is: 42,897.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,719.71 : 72,868.42 = 28,681.44 : x
  2. Step 2: Convert to fraction form
    48,719.71/72,868.42 = 28,681.44/x
  3. Step 3: Cross multiply
    48,719.71x = 72,868.42 × 28,681.44
  4. Step 4: Simplify right side
    48,719.71x = 2,089,971,216.12
  5. Step 5: Solve for x
    x = 2,089,971,216.12/48,719.71
  6. Step 6: Final answer
    x = 42,897.86

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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.