Home / 55,770.36-83,688.18-20,734.20

Finding the Fourth Proportional to 55,770.36, 83,688.18 and 20,734.20

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Solution

The fourth proportional to 55,770.36, 83,688.18 and 20,734.20 is: 31,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,770.36 : 83,688.18 = 20,734.20 : x
  2. Step 2: Convert to fraction form
    55,770.36/83,688.18 = 20,734.20/x
  3. Step 3: Cross multiply
    55,770.36x = 83,688.18 × 20,734.20
  4. Step 4: Simplify right side
    55,770.36x = 1,735,207,461.76
  5. Step 5: Solve for x
    x = 1,735,207,461.76/55,770.36
  6. Step 6: Final answer
    x = 31,113.43

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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.