Home / 76,391.04-114,571.74-38,430.20

Finding the Fourth Proportional to 76,391.04, 114,571.74 and 38,430.20

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Solution

The fourth proportional to 76,391.04, 114,571.74 and 38,430.20 is: 57,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,391.04 : 114,571.74 = 38,430.20 : x
  2. Step 2: Convert to fraction form
    76,391.04/114,571.74 = 38,430.20/x
  3. Step 3: Cross multiply
    76,391.04x = 114,571.74 × 38,430.20
  4. Step 4: Simplify right side
    76,391.04x = 4,403,014,882.55
  5. Step 5: Solve for x
    x = 4,403,014,882.55/76,391.04
  6. Step 6: Final answer
    x = 57,637.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.