Home / 66,783.95-100,160.19-19,386.53

Finding the Fourth Proportional to 66,783.95, 100,160.19 and 19,386.53

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Solution

The fourth proportional to 66,783.95, 100,160.19 and 19,386.53 is: 29,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,783.95 : 100,160.19 = 19,386.53 : x
  2. Step 2: Convert to fraction form
    66,783.95/100,160.19 = 19,386.53/x
  3. Step 3: Cross multiply
    66,783.95x = 100,160.19 × 19,386.53
  4. Step 4: Simplify right side
    66,783.95x = 1,941,758,027.44
  5. Step 5: Solve for x
    x = 1,941,758,027.44/66,783.95
  6. Step 6: Final answer
    x = 29,075.22

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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.