Home / 57,281.96-85,985.76-45,511.37

Finding the Fourth Proportional to 57,281.96, 85,985.76 and 45,511.37

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Solution

The fourth proportional to 57,281.96, 85,985.76 and 45,511.37 is: 68,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,281.96 : 85,985.76 = 45,511.37 : x
  2. Step 2: Convert to fraction form
    57,281.96/85,985.76 = 45,511.37/x
  3. Step 3: Cross multiply
    57,281.96x = 85,985.76 × 45,511.37
  4. Step 4: Simplify right side
    57,281.96x = 3,913,329,308.16
  5. Step 5: Solve for x
    x = 3,913,329,308.16/57,281.96
  6. Step 6: Final answer
    x = 68,316.96

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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.