Home / 56,420.87-84,609.42-30,111.26

Finding the Fourth Proportional to 56,420.87, 84,609.42 and 30,111.26

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Solution

The fourth proportional to 56,420.87, 84,609.42 and 30,111.26 is: 45,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,420.87 : 84,609.42 = 30,111.26 : x
  2. Step 2: Convert to fraction form
    56,420.87/84,609.42 = 30,111.26/x
  3. Step 3: Cross multiply
    56,420.87x = 84,609.42 × 30,111.26
  4. Step 4: Simplify right side
    56,420.87x = 2,547,695,821.02
  5. Step 5: Solve for x
    x = 2,547,695,821.02/56,420.87
  6. Step 6: Final answer
    x = 45,155.21

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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.