Home / 70,641.19-97,490.30-40,435.99

Finding the Fourth Proportional to 70,641.19, 97,490.30 and 40,435.99

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Solution

The fourth proportional to 70,641.19, 97,490.30 and 40,435.99 is: 55,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.19 : 97,490.30 = 40,435.99 : x
  2. Step 2: Convert to fraction form
    70,641.19/97,490.30 = 40,435.99/x
  3. Step 3: Cross multiply
    70,641.19x = 97,490.30 × 40,435.99
  4. Step 4: Simplify right side
    70,641.19x = 3,942,116,795.90
  5. Step 5: Solve for x
    x = 3,942,116,795.90/70,641.19
  6. Step 6: Final answer
    x = 55,804.79

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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.