Home / 56,384.15-84,543.42-21,326.54

Finding the Fourth Proportional to 56,384.15, 84,543.42 and 21,326.54

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Solution

The fourth proportional to 56,384.15, 84,543.42 and 21,326.54 is: 31,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,384.15 : 84,543.42 = 21,326.54 : x
  2. Step 2: Convert to fraction form
    56,384.15/84,543.42 = 21,326.54/x
  3. Step 3: Cross multiply
    56,384.15x = 84,543.42 × 21,326.54
  4. Step 4: Simplify right side
    56,384.15x = 1,803,018,701.20
  5. Step 5: Solve for x
    x = 1,803,018,701.20/56,384.15
  6. Step 6: Final answer
    x = 31,977.40

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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.