Home / 67,420.92-93,018.06-39,116.28

Finding the Fourth Proportional to 67,420.92, 93,018.06 and 39,116.28

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Solution

The fourth proportional to 67,420.92, 93,018.06 and 39,116.28 is: 53,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.92 : 93,018.06 = 39,116.28 : x
  2. Step 2: Convert to fraction form
    67,420.92/93,018.06 = 39,116.28/x
  3. Step 3: Cross multiply
    67,420.92x = 93,018.06 × 39,116.28
  4. Step 4: Simplify right side
    67,420.92x = 3,638,520,480.02
  5. Step 5: Solve for x
    x = 3,638,520,480.02/67,420.92
  6. Step 6: Final answer
    x = 53,967.23

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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.