Home / 65,707.12-90,670.80-37,407.16

Finding the Fourth Proportional to 65,707.12, 90,670.80 and 37,407.16

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Solution

The fourth proportional to 65,707.12, 90,670.80 and 37,407.16 is: 51,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,707.12 : 90,670.80 = 37,407.16 : x
  2. Step 2: Convert to fraction form
    65,707.12/90,670.80 = 37,407.16/x
  3. Step 3: Cross multiply
    65,707.12x = 90,670.80 × 37,407.16
  4. Step 4: Simplify right side
    65,707.12x = 3,391,737,122.93
  5. Step 5: Solve for x
    x = 3,391,737,122.93/65,707.12
  6. Step 6: Final answer
    x = 51,619.02

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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.