Home / 78,621.66-108,480.98-46,784.34

Finding the Fourth Proportional to 78,621.66, 108,480.98 and 46,784.34

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Solution

The fourth proportional to 78,621.66, 108,480.98 and 46,784.34 is: 64,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,621.66 : 108,480.98 = 46,784.34 : x
  2. Step 2: Convert to fraction form
    78,621.66/108,480.98 = 46,784.34/x
  3. Step 3: Cross multiply
    78,621.66x = 108,480.98 × 46,784.34
  4. Step 4: Simplify right side
    78,621.66x = 5,075,211,051.85
  5. Step 5: Solve for x
    x = 5,075,211,051.85/78,621.66
  6. Step 6: Final answer
    x = 64,552.33

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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.