Home / 65,420.02-90,279.37-36,735.69

Finding the Fourth Proportional to 65,420.02, 90,279.37 and 36,735.69

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Solution

The fourth proportional to 65,420.02, 90,279.37 and 36,735.69 is: 50,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,420.02 : 90,279.37 = 36,735.69 : x
  2. Step 2: Convert to fraction form
    65,420.02/90,279.37 = 36,735.69/x
  3. Step 3: Cross multiply
    65,420.02x = 90,279.37 × 36,735.69
  4. Step 4: Simplify right side
    65,420.02x = 3,316,474,314.64
  5. Step 5: Solve for x
    x = 3,316,474,314.64/65,420.02
  6. Step 6: Final answer
    x = 50,695.10

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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.