Home / 46,320-63,974.40-31,390.08

Finding the Fourth Proportional to 46,320, 63,974.40 and 31,390.08

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Solution

The fourth proportional to 46,320, 63,974.40 and 31,390.08 is: 43,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,320 : 63,974.40 = 31,390.08 : x
  2. Step 2: Convert to fraction form
    46,320/63,974.40 = 31,390.08/x
  3. Step 3: Cross multiply
    46,320x = 63,974.40 × 31,390.08
  4. Step 4: Simplify right side
    46,320x = 2,008,161,533.95
  5. Step 5: Solve for x
    x = 2,008,161,533.95/46,320
  6. Step 6: Final answer
    x = 43,354.09

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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.