Home / 60,130.67-90,195.05-20,688.12

Finding the Fourth Proportional to 60,130.67, 90,195.05 and 20,688.12

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Solution

The fourth proportional to 60,130.67, 90,195.05 and 20,688.12 is: 31,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,130.67 : 90,195.05 = 20,688.12 : x
  2. Step 2: Convert to fraction form
    60,130.67/90,195.05 = 20,688.12/x
  3. Step 3: Cross multiply
    60,130.67x = 90,195.05 × 20,688.12
  4. Step 4: Simplify right side
    60,130.67x = 1,865,966,069.53
  5. Step 5: Solve for x
    x = 1,865,966,069.53/60,130.67
  6. Step 6: Final answer
    x = 31,031.85

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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.