Home / 65,350.92-90,170.28-38,483.58

Finding the Fourth Proportional to 65,350.92, 90,170.28 and 38,483.58

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Solution

The fourth proportional to 65,350.92, 90,170.28 and 38,483.58 is: 53,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,350.92 : 90,170.28 = 38,483.58 : x
  2. Step 2: Convert to fraction form
    65,350.92/90,170.28 = 38,483.58/x
  3. Step 3: Cross multiply
    65,350.92x = 90,170.28 × 38,483.58
  4. Step 4: Simplify right side
    65,350.92x = 3,470,075,184.00
  5. Step 5: Solve for x
    x = 3,470,075,184.00/65,350.92
  6. Step 6: Final answer
    x = 53,099.10

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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.