Home / 55,430.46-83,145.45-13,877.34

Finding the Fourth Proportional to 55,430.46, 83,145.45 and 13,877.34

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Solution

The fourth proportional to 55,430.46, 83,145.45 and 13,877.34 is: 20,815.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,430.46 : 83,145.45 = 13,877.34 : x
  2. Step 2: Convert to fraction form
    55,430.46/83,145.45 = 13,877.34/x
  3. Step 3: Cross multiply
    55,430.46x = 83,145.45 × 13,877.34
  4. Step 4: Simplify right side
    55,430.46x = 1,153,837,679.10
  5. Step 5: Solve for x
    x = 1,153,837,679.10/55,430.46
  6. Step 6: Final answer
    x = 20,815.95

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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.