Home / 65,416.40-90,276.29-36,738.35

Finding the Fourth Proportional to 65,416.40, 90,276.29 and 36,738.35

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Solution

The fourth proportional to 65,416.40, 90,276.29 and 36,738.35 is: 50,699.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,416.40 : 90,276.29 = 36,738.35 : x
  2. Step 2: Convert to fraction form
    65,416.40/90,276.29 = 36,738.35/x
  3. Step 3: Cross multiply
    65,416.40x = 90,276.29 × 36,738.35
  4. Step 4: Simplify right side
    65,416.40x = 3,316,601,938.72
  5. Step 5: Solve for x
    x = 3,316,601,938.72/65,416.40
  6. Step 6: Final answer
    x = 50,699.85

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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.