Home / 65,552.64-90,457.76-40,402.56

Finding the Fourth Proportional to 65,552.64, 90,457.76 and 40,402.56

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Solution

The fourth proportional to 65,552.64, 90,457.76 and 40,402.56 is: 55,752.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,552.64 : 90,457.76 = 40,402.56 : x
  2. Step 2: Convert to fraction form
    65,552.64/90,457.76 = 40,402.56/x
  3. Step 3: Cross multiply
    65,552.64x = 90,457.76 × 40,402.56
  4. Step 4: Simplify right side
    65,552.64x = 3,654,725,075.87
  5. Step 5: Solve for x
    x = 3,654,725,075.87/65,552.64
  6. Step 6: Final answer
    x = 55,752.52

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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.