Home / 55,415.40-83,123.10-43,605.60

Finding the Fourth Proportional to 55,415.40, 83,123.10 and 43,605.60

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Solution

The fourth proportional to 55,415.40, 83,123.10 and 43,605.60 is: 65,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,415.40 : 83,123.10 = 43,605.60 : x
  2. Step 2: Convert to fraction form
    55,415.40/83,123.10 = 43,605.60/x
  3. Step 3: Cross multiply
    55,415.40x = 83,123.10 × 43,605.60
  4. Step 4: Simplify right side
    55,415.40x = 3,624,632,649.36
  5. Step 5: Solve for x
    x = 3,624,632,649.36/55,415.40
  6. Step 6: Final answer
    x = 65,408.40

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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.