Home / 77,838.52-116,802.18-30,457.47

Finding the Fourth Proportional to 77,838.52, 116,802.18 and 30,457.47

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Solution

The fourth proportional to 77,838.52, 116,802.18 and 30,457.47 is: 45,703.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,838.52 : 116,802.18 = 30,457.47 : x
  2. Step 2: Convert to fraction form
    77,838.52/116,802.18 = 30,457.47/x
  3. Step 3: Cross multiply
    77,838.52x = 116,802.18 × 30,457.47
  4. Step 4: Simplify right side
    77,838.52x = 3,557,498,893.28
  5. Step 5: Solve for x
    x = 3,557,498,893.28/77,838.52
  6. Step 6: Final answer
    x = 45,703.58

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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.