Home / 61,315.24-84,653.76-40,130.32

Finding the Fourth Proportional to 61,315.24, 84,653.76 and 40,130.32

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Solution

The fourth proportional to 61,315.24, 84,653.76 and 40,130.32 is: 55,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,315.24 : 84,653.76 = 40,130.32 : x
  2. Step 2: Convert to fraction form
    61,315.24/84,653.76 = 40,130.32/x
  3. Step 3: Cross multiply
    61,315.24x = 84,653.76 × 40,130.32
  4. Step 4: Simplify right side
    61,315.24x = 3,397,182,478.00
  5. Step 5: Solve for x
    x = 3,397,182,478.00/61,315.24
  6. Step 6: Final answer
    x = 55,405.19

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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.