Home / 77,448.51-116,159.34-21,275.24

Finding the Fourth Proportional to 77,448.51, 116,159.34 and 21,275.24

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Solution

The fourth proportional to 77,448.51, 116,159.34 and 21,275.24 is: 31,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,448.51 : 116,159.34 = 21,275.24 : x
  2. Step 2: Convert to fraction form
    77,448.51/116,159.34 = 21,275.24/x
  3. Step 3: Cross multiply
    77,448.51x = 116,159.34 × 21,275.24
  4. Step 4: Simplify right side
    77,448.51x = 2,471,317,255.94
  5. Step 5: Solve for x
    x = 2,471,317,255.94/77,448.51
  6. Step 6: Final answer
    x = 31,909.16

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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.