Home / 78,569.16-108,437.12-46,293.48

Finding the Fourth Proportional to 78,569.16, 108,437.12 and 46,293.48

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Solution

The fourth proportional to 78,569.16, 108,437.12 and 46,293.48 is: 63,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,569.16 : 108,437.12 = 46,293.48 : x
  2. Step 2: Convert to fraction form
    78,569.16/108,437.12 = 46,293.48/x
  3. Step 3: Cross multiply
    78,569.16x = 108,437.12 × 46,293.48
  4. Step 4: Simplify right side
    78,569.16x = 5,019,931,645.98
  5. Step 5: Solve for x
    x = 5,019,931,645.98/78,569.16
  6. Step 6: Final answer
    x = 63,891.88

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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.