Home / 78,314.36-108,075.94-42,504.44

Finding the Fourth Proportional to 78,314.36, 108,075.94 and 42,504.44

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Solution

The fourth proportional to 78,314.36, 108,075.94 and 42,504.44 is: 58,657.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314.36 : 108,075.94 = 42,504.44 : x
  2. Step 2: Convert to fraction form
    78,314.36/108,075.94 = 42,504.44/x
  3. Step 3: Cross multiply
    78,314.36x = 108,075.94 × 42,504.44
  4. Step 4: Simplify right side
    78,314.36x = 4,593,707,307.17
  5. Step 5: Solve for x
    x = 4,593,707,307.17/78,314.36
  6. Step 6: Final answer
    x = 58,657.28

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1.5x scale

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.