Home / 105,297.50-145,310.28-57,551.17

Finding the Fourth Proportional to 105,297.50, 145,310.28 and 57,551.17

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Solution

The fourth proportional to 105,297.50, 145,310.28 and 57,551.17 is: 79,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,297.50 : 145,310.28 = 57,551.17 : x
  2. Step 2: Convert to fraction form
    105,297.50/145,310.28 = 57,551.17/x
  3. Step 3: Cross multiply
    105,297.50x = 145,310.28 × 57,551.17
  4. Step 4: Simplify right side
    105,297.50x = 8,362,776,627.03
  5. Step 5: Solve for x
    x = 8,362,776,627.03/105,297.50
  6. Step 6: Final answer
    x = 79,420.47

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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.