Home / 55,557.40-83,318.80-18,612.76

Finding the Fourth Proportional to 55,557.40, 83,318.80 and 18,612.76

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Solution

The fourth proportional to 55,557.40, 83,318.80 and 18,612.76 is: 27,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,557.40 : 83,318.80 = 18,612.76 : x
  2. Step 2: Convert to fraction form
    55,557.40/83,318.80 = 18,612.76/x
  3. Step 3: Cross multiply
    55,557.40x = 83,318.80 × 18,612.76
  4. Step 4: Simplify right side
    55,557.40x = 1,550,792,827.89
  5. Step 5: Solve for x
    x = 1,550,792,827.89/55,557.40
  6. Step 6: Final answer
    x = 27,913.34

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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.