Home / 65,464.02-90,336.33-38,607.66

Finding the Fourth Proportional to 65,464.02, 90,336.33 and 38,607.66

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Solution

The fourth proportional to 65,464.02, 90,336.33 and 38,607.66 is: 53,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,464.02 : 90,336.33 = 38,607.66 : x
  2. Step 2: Convert to fraction form
    65,464.02/90,336.33 = 38,607.66/x
  3. Step 3: Cross multiply
    65,464.02x = 90,336.33 × 38,607.66
  4. Step 4: Simplify right side
    65,464.02x = 3,487,674,314.29
  5. Step 5: Solve for x
    x = 3,487,674,314.29/65,464.02
  6. Step 6: Final answer
    x = 53,276.20

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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.