Home / 72,075.15-108,112.47-19,484.63

Finding the Fourth Proportional to 72,075.15, 108,112.47 and 19,484.63

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Solution

The fourth proportional to 72,075.15, 108,112.47 and 19,484.63 is: 29,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,075.15 : 108,112.47 = 19,484.63 : x
  2. Step 2: Convert to fraction form
    72,075.15/108,112.47 = 19,484.63/x
  3. Step 3: Cross multiply
    72,075.15x = 108,112.47 × 19,484.63
  4. Step 4: Simplify right side
    72,075.15x = 2,106,531,634.51
  5. Step 5: Solve for x
    x = 2,106,531,634.51/72,075.15
  6. Step 6: Final answer
    x = 29,226.88

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1.5x scale

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.