Home / 65,256.48-90,046.35-38,393.10

Finding the Fourth Proportional to 65,256.48, 90,046.35 and 38,393.10

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Solution

The fourth proportional to 65,256.48, 90,046.35 and 38,393.10 is: 52,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,256.48 : 90,046.35 = 38,393.10 : x
  2. Step 2: Convert to fraction form
    65,256.48/90,046.35 = 38,393.10/x
  3. Step 3: Cross multiply
    65,256.48x = 90,046.35 × 38,393.10
  4. Step 4: Simplify right side
    65,256.48x = 3,457,158,520.19
  5. Step 5: Solve for x
    x = 3,457,158,520.19/65,256.48
  6. Step 6: Final answer
    x = 52,978.01

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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.