Home / 65,438.10-90,305.01-37,144.26

Finding the Fourth Proportional to 65,438.10, 90,305.01 and 37,144.26

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Solution

The fourth proportional to 65,438.10, 90,305.01 and 37,144.26 is: 51,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,438.10 : 90,305.01 = 37,144.26 : x
  2. Step 2: Convert to fraction form
    65,438.10/90,305.01 = 37,144.26/x
  3. Step 3: Cross multiply
    65,438.10x = 90,305.01 × 37,144.26
  4. Step 4: Simplify right side
    65,438.10x = 3,354,312,770.74
  5. Step 5: Solve for x
    x = 3,354,312,770.74/65,438.10
  6. Step 6: Final answer
    x = 51,259.32

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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.