Home / 65,450.16-90,321.60-37,156.32

Finding the Fourth Proportional to 65,450.16, 90,321.60 and 37,156.32

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Solution

The fourth proportional to 65,450.16, 90,321.60 and 37,156.32 is: 51,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,450.16 : 90,321.60 = 37,156.32 : x
  2. Step 2: Convert to fraction form
    65,450.16/90,321.60 = 37,156.32/x
  3. Step 3: Cross multiply
    65,450.16x = 90,321.60 × 37,156.32
  4. Step 4: Simplify right side
    65,450.16x = 3,356,018,272.51
  5. Step 5: Solve for x
    x = 3,356,018,272.51/65,450.16
  6. Step 6: Final answer
    x = 51,275.94

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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.