Home / 40,690.60-61,075.35-19,645.48

Finding the Fourth Proportional to 40,690.60, 61,075.35 and 19,645.48

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Solution

The fourth proportional to 40,690.60, 61,075.35 and 19,645.48 is: 29,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.60 : 61,075.35 = 19,645.48 : x
  2. Step 2: Convert to fraction form
    40,690.60/61,075.35 = 19,645.48/x
  3. Step 3: Cross multiply
    40,690.60x = 61,075.35 × 19,645.48
  4. Step 4: Simplify right side
    40,690.60x = 1,199,854,643.26
  5. Step 5: Solve for x
    x = 1,199,854,643.26/40,690.60
  6. Step 6: Final answer
    x = 29,487.27

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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.