Home / 51,790.02-77,701.32-18,509.40

Finding the Fourth Proportional to 51,790.02, 77,701.32 and 18,509.40

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Solution

The fourth proportional to 51,790.02, 77,701.32 and 18,509.40 is: 27,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,790.02 : 77,701.32 = 18,509.40 : x
  2. Step 2: Convert to fraction form
    51,790.02/77,701.32 = 18,509.40/x
  3. Step 3: Cross multiply
    51,790.02x = 77,701.32 × 18,509.40
  4. Step 4: Simplify right side
    51,790.02x = 1,438,204,812.41
  5. Step 5: Solve for x
    x = 1,438,204,812.41/51,790.02
  6. Step 6: Final answer
    x = 27,769.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.