Home / 65,350.56-90,111.74-45,172.41

Finding the Fourth Proportional to 65,350.56, 90,111.74 and 45,172.41

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Solution

The fourth proportional to 65,350.56, 90,111.74 and 45,172.41 is: 62,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,350.56 : 90,111.74 = 45,172.41 : x
  2. Step 2: Convert to fraction form
    65,350.56/90,111.74 = 45,172.41/x
  3. Step 3: Cross multiply
    65,350.56x = 90,111.74 × 45,172.41
  4. Step 4: Simplify right side
    65,350.56x = 4,070,564,915.94
  5. Step 5: Solve for x
    x = 4,070,564,915.94/65,350.56
  6. Step 6: Final answer
    x = 62,288.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.