Home / 102,977.28-142,075.62-57,648.60

Finding the Fourth Proportional to 102,977.28, 142,075.62 and 57,648.60

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Solution

The fourth proportional to 102,977.28, 142,075.62 and 57,648.60 is: 79,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,977.28 : 142,075.62 = 57,648.60 : x
  2. Step 2: Convert to fraction form
    102,977.28/142,075.62 = 57,648.60/x
  3. Step 3: Cross multiply
    102,977.28x = 142,075.62 × 57,648.60
  4. Step 4: Simplify right side
    102,977.28x = 8,190,460,587.13
  5. Step 5: Solve for x
    x = 8,190,460,587.13/102,977.28
  6. Step 6: Final answer
    x = 79,536.58

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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.