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Finding the Fourth Proportional to 55,353.72, 83,030.88 and 13,800.72

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Solution

The fourth proportional to 55,353.72, 83,030.88 and 13,800.72 is: 20,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,353.72 : 83,030.88 = 13,800.72 : x
  2. Step 2: Convert to fraction form
    55,353.72/83,030.88 = 13,800.72/x
  3. Step 3: Cross multiply
    55,353.72x = 83,030.88 × 13,800.72
  4. Step 4: Simplify right side
    55,353.72x = 1,145,885,926.23
  5. Step 5: Solve for x
    x = 1,145,885,926.23/55,353.72
  6. Step 6: Final answer
    x = 20,701.15

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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.