Home / 45,528.51-68,302.80-13,938.81

Finding the Fourth Proportional to 45,528.51, 68,302.80 and 13,938.81

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Solution

The fourth proportional to 45,528.51, 68,302.80 and 13,938.81 is: 20,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,528.51 : 68,302.80 = 13,938.81 : x
  2. Step 2: Convert to fraction form
    45,528.51/68,302.80 = 13,938.81/x
  3. Step 3: Cross multiply
    45,528.51x = 68,302.80 × 13,938.81
  4. Step 4: Simplify right side
    45,528.51x = 952,059,751.67
  5. Step 5: Solve for x
    x = 952,059,751.67/45,528.51
  6. Step 6: Final answer
    x = 20,911.29

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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.