Home / 56,178.18-84,279.83-21,118.14

Finding the Fourth Proportional to 56,178.18, 84,279.83 and 21,118.14

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Solution

The fourth proportional to 56,178.18, 84,279.83 and 21,118.14 is: 31,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,178.18 : 84,279.83 = 21,118.14 : x
  2. Step 2: Convert to fraction form
    56,178.18/84,279.83 = 21,118.14/x
  3. Step 3: Cross multiply
    56,178.18x = 84,279.83 × 21,118.14
  4. Step 4: Simplify right side
    56,178.18x = 1,779,833,143.53
  5. Step 5: Solve for x
    x = 1,779,833,143.53/56,178.18
  6. Step 6: Final answer
    x = 31,681.93

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1.5x scale

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.