Home / 65,403.45-90,256.95-37,109.07

Finding the Fourth Proportional to 65,403.45, 90,256.95 and 37,109.07

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Solution

The fourth proportional to 65,403.45, 90,256.95 and 37,109.07 is: 51,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,403.45 : 90,256.95 = 37,109.07 : x
  2. Step 2: Convert to fraction form
    65,403.45/90,256.95 = 37,109.07/x
  3. Step 3: Cross multiply
    65,403.45x = 90,256.95 × 37,109.07
  4. Step 4: Simplify right side
    65,403.45x = 3,349,351,475.54
  5. Step 5: Solve for x
    x = 3,349,351,475.54/65,403.45
  6. Step 6: Final answer
    x = 51,210.62

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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.