Home / 45,071.40-67,607.10-20,111.40

Finding the Fourth Proportional to 45,071.40, 67,607.10 and 20,111.40

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Solution

The fourth proportional to 45,071.40, 67,607.10 and 20,111.40 is: 30,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,071.40 : 67,607.10 = 20,111.40 : x
  2. Step 2: Convert to fraction form
    45,071.40/67,607.10 = 20,111.40/x
  3. Step 3: Cross multiply
    45,071.40x = 67,607.10 × 20,111.40
  4. Step 4: Simplify right side
    45,071.40x = 1,359,673,430.94
  5. Step 5: Solve for x
    x = 1,359,673,430.94/45,071.40
  6. Step 6: Final answer
    x = 30,167.10

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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.