Home / 56,411.93-84,622.10-18,971.87

Finding the Fourth Proportional to 56,411.93, 84,622.10 and 18,971.87

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Solution

The fourth proportional to 56,411.93, 84,622.10 and 18,971.87 is: 28,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,411.93 : 84,622.10 = 18,971.87 : x
  2. Step 2: Convert to fraction form
    56,411.93/84,622.10 = 18,971.87/x
  3. Step 3: Cross multiply
    56,411.93x = 84,622.10 × 18,971.87
  4. Step 4: Simplify right side
    56,411.93x = 1,605,438,962.36
  5. Step 5: Solve for x
    x = 1,605,438,962.36/56,411.93
  6. Step 6: Final answer
    x = 28,459.21

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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.