Home / 56,113.15-84,140.16-18,669.28

Finding the Fourth Proportional to 56,113.15, 84,140.16 and 18,669.28

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Solution

The fourth proportional to 56,113.15, 84,140.16 and 18,669.28 is: 27,994.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,113.15 : 84,140.16 = 18,669.28 : x
  2. Step 2: Convert to fraction form
    56,113.15/84,140.16 = 18,669.28/x
  3. Step 3: Cross multiply
    56,113.15x = 84,140.16 × 18,669.28
  4. Step 4: Simplify right side
    56,113.15x = 1,570,836,206.28
  5. Step 5: Solve for x
    x = 1,570,836,206.28/56,113.15
  6. Step 6: Final answer
    x = 27,994.08

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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.