Home / 55,962.40-83,931.28-18,513.60

Finding the Fourth Proportional to 55,962.40, 83,931.28 and 18,513.60

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Solution

The fourth proportional to 55,962.40, 83,931.28 and 18,513.60 is: 27,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,962.40 : 83,931.28 = 18,513.60 : x
  2. Step 2: Convert to fraction form
    55,962.40/83,931.28 = 18,513.60/x
  3. Step 3: Cross multiply
    55,962.40x = 83,931.28 × 18,513.60
  4. Step 4: Simplify right side
    55,962.40x = 1,553,870,145.41
  5. Step 5: Solve for x
    x = 1,553,870,145.41/55,962.40
  6. Step 6: Final answer
    x = 27,766.32

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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.