Home / 45,599.26-68,420.55-31,580.86

Finding the Fourth Proportional to 45,599.26, 68,420.55 and 31,580.86

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Solution

The fourth proportional to 45,599.26, 68,420.55 and 31,580.86 is: 47,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,599.26 : 68,420.55 = 31,580.86 : x
  2. Step 2: Convert to fraction form
    45,599.26/68,420.55 = 31,580.86/x
  3. Step 3: Cross multiply
    45,599.26x = 68,420.55 × 31,580.86
  4. Step 4: Simplify right side
    45,599.26x = 2,160,779,810.67
  5. Step 5: Solve for x
    x = 2,160,779,810.67/45,599.26
  6. Step 6: Final answer
    x = 47,386.29

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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.