Home / 105,632.76-145,773.34-57,887.84

Finding the Fourth Proportional to 105,632.76, 145,773.34 and 57,887.84

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Solution

The fourth proportional to 105,632.76, 145,773.34 and 57,887.84 is: 79,885.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.76 : 145,773.34 = 57,887.84 : x
  2. Step 2: Convert to fraction form
    105,632.76/145,773.34 = 57,887.84/x
  3. Step 3: Cross multiply
    105,632.76x = 145,773.34 × 57,887.84
  4. Step 4: Simplify right side
    105,632.76x = 8,438,503,782.19
  5. Step 5: Solve for x
    x = 8,438,503,782.19/105,632.76
  6. Step 6: Final answer
    x = 79,885.29

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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.