Home / 66,628.99-91,939.12-42,787.95

Finding the Fourth Proportional to 66,628.99, 91,939.12 and 42,787.95

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Solution

The fourth proportional to 66,628.99, 91,939.12 and 42,787.95 is: 59,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,628.99 : 91,939.12 = 42,787.95 : x
  2. Step 2: Convert to fraction form
    66,628.99/91,939.12 = 42,787.95/x
  3. Step 3: Cross multiply
    66,628.99x = 91,939.12 × 42,787.95
  4. Step 4: Simplify right side
    66,628.99x = 3,933,886,707.41
  5. Step 5: Solve for x
    x = 3,933,886,707.41/66,628.99
  6. Step 6: Final answer
    x = 59,041.67

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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.