Home / 76,200.07-105,151.47-42,206.57

Finding the Fourth Proportional to 76,200.07, 105,151.47 and 42,206.57

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Solution

The fourth proportional to 76,200.07, 105,151.47 and 42,206.57 is: 58,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,200.07 : 105,151.47 = 42,206.57 : x
  2. Step 2: Convert to fraction form
    76,200.07/105,151.47 = 42,206.57/x
  3. Step 3: Cross multiply
    76,200.07x = 105,151.47 × 42,206.57
  4. Step 4: Simplify right side
    76,200.07x = 4,438,082,589.44
  5. Step 5: Solve for x
    x = 4,438,082,589.44/76,200.07
  6. Step 6: Final answer
    x = 58,242.50

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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.