Home / 46,400.16-69,604.02-13,120.50

Finding the Fourth Proportional to 46,400.16, 69,604.02 and 13,120.50

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Solution

The fourth proportional to 46,400.16, 69,604.02 and 13,120.50 is: 19,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,400.16 : 69,604.02 = 13,120.50 : x
  2. Step 2: Convert to fraction form
    46,400.16/69,604.02 = 13,120.50/x
  3. Step 3: Cross multiply
    46,400.16x = 69,604.02 × 13,120.50
  4. Step 4: Simplify right side
    46,400.16x = 913,239,544.41
  5. Step 5: Solve for x
    x = 913,239,544.41/46,400.16
  6. Step 6: Final answer
    x = 19,681.82

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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.