Home / 65,571.12-90,484.70-38,703.83

Finding the Fourth Proportional to 65,571.12, 90,484.70 and 38,703.83

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Solution

The fourth proportional to 65,571.12, 90,484.70 and 38,703.83 is: 53,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,571.12 : 90,484.70 = 38,703.83 : x
  2. Step 2: Convert to fraction form
    65,571.12/90,484.70 = 38,703.83/x
  3. Step 3: Cross multiply
    65,571.12x = 90,484.70 × 38,703.83
  4. Step 4: Simplify right side
    65,571.12x = 3,502,103,800.46
  5. Step 5: Solve for x
    x = 3,502,103,800.46/65,571.12
  6. Step 6: Final answer
    x = 53,409.24

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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.