Home / 67,921.44-93,670.22-42,430.13

Finding the Fourth Proportional to 67,921.44, 93,670.22 and 42,430.13

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Solution

The fourth proportional to 67,921.44, 93,670.22 and 42,430.13 is: 58,515.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,921.44 : 93,670.22 = 42,430.13 : x
  2. Step 2: Convert to fraction form
    67,921.44/93,670.22 = 42,430.13/x
  3. Step 3: Cross multiply
    67,921.44x = 93,670.22 × 42,430.13
  4. Step 4: Simplify right side
    67,921.44x = 3,974,439,600.72
  5. Step 5: Solve for x
    x = 3,974,439,600.72/67,921.44
  6. Step 6: Final answer
    x = 58,515.25

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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.