Home / 76,263.16-105,242.86-42,729.08

Finding the Fourth Proportional to 76,263.16, 105,242.86 and 42,729.08

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Solution

The fourth proportional to 76,263.16, 105,242.86 and 42,729.08 is: 58,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.16 : 105,242.86 = 42,729.08 : x
  2. Step 2: Convert to fraction form
    76,263.16/105,242.86 = 42,729.08/x
  3. Step 3: Cross multiply
    76,263.16x = 105,242.86 × 42,729.08
  4. Step 4: Simplify right side
    76,263.16x = 4,496,930,584.37
  5. Step 5: Solve for x
    x = 4,496,930,584.37/76,263.16
  6. Step 6: Final answer
    x = 58,965.96

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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.