Home / 65,276.15-90,106.16-38,419.79

Finding the Fourth Proportional to 65,276.15, 90,106.16 and 38,419.79

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Solution

The fourth proportional to 65,276.15, 90,106.16 and 38,419.79 is: 53,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,276.15 : 90,106.16 = 38,419.79 : x
  2. Step 2: Convert to fraction form
    65,276.15/90,106.16 = 38,419.79/x
  3. Step 3: Cross multiply
    65,276.15x = 90,106.16 × 38,419.79
  4. Step 4: Simplify right side
    65,276.15x = 3,461,859,102.28
  5. Step 5: Solve for x
    x = 3,461,859,102.28/65,276.15
  6. Step 6: Final answer
    x = 53,034.06

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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.