Home / 56,475.10-84,712.65-21,412.90

Finding the Fourth Proportional to 56,475.10, 84,712.65 and 21,412.90

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Solution

The fourth proportional to 56,475.10, 84,712.65 and 21,412.90 is: 32,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,475.10 : 84,712.65 = 21,412.90 : x
  2. Step 2: Convert to fraction form
    56,475.10/84,712.65 = 21,412.90/x
  3. Step 3: Cross multiply
    56,475.10x = 84,712.65 × 21,412.90
  4. Step 4: Simplify right side
    56,475.10x = 1,813,943,503.19
  5. Step 5: Solve for x
    x = 1,813,943,503.19/56,475.10
  6. Step 6: Final answer
    x = 32,119.35

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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.