Home / 56,381.77-84,574.05-18,943.15

Finding the Fourth Proportional to 56,381.77, 84,574.05 and 18,943.15

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Solution

The fourth proportional to 56,381.77, 84,574.05 and 18,943.15 is: 28,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,381.77 : 84,574.05 = 18,943.15 : x
  2. Step 2: Convert to fraction form
    56,381.77/84,574.05 = 18,943.15/x
  3. Step 3: Cross multiply
    56,381.77x = 84,574.05 × 18,943.15
  4. Step 4: Simplify right side
    56,381.77x = 1,602,098,915.26
  5. Step 5: Solve for x
    x = 1,602,098,915.26/56,381.77
  6. Step 6: Final answer
    x = 28,415.19

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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.