Home / 55,810.40-83,715.60-36,111.20

Finding the Fourth Proportional to 55,810.40, 83,715.60 and 36,111.20

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Solution

The fourth proportional to 55,810.40, 83,715.60 and 36,111.20 is: 54,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.40 : 83,715.60 = 36,111.20 : x
  2. Step 2: Convert to fraction form
    55,810.40/83,715.60 = 36,111.20/x
  3. Step 3: Cross multiply
    55,810.40x = 83,715.60 × 36,111.20
  4. Step 4: Simplify right side
    55,810.40x = 3,023,070,774.72
  5. Step 5: Solve for x
    x = 3,023,070,774.72/55,810.40
  6. Step 6: Final answer
    x = 54,166.80

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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.