Home / 56,140.98-84,186.83-21,056.04

Finding the Fourth Proportional to 56,140.98, 84,186.83 and 21,056.04

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Solution

The fourth proportional to 56,140.98, 84,186.83 and 21,056.04 is: 31,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,140.98 : 84,186.83 = 21,056.04 : x
  2. Step 2: Convert to fraction form
    56,140.98/84,186.83 = 21,056.04/x
  3. Step 3: Cross multiply
    56,140.98x = 84,186.83 × 21,056.04
  4. Step 4: Simplify right side
    56,140.98x = 1,772,641,154.67
  5. Step 5: Solve for x
    x = 1,772,641,154.67/56,140.98
  6. Step 6: Final answer
    x = 31,574.82

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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.