Home / 66,810.12-100,075.74-40,071.31

Finding the Fourth Proportional to 66,810.12, 100,075.74 and 40,071.31

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Solution

The fourth proportional to 66,810.12, 100,075.74 and 40,071.31 is: 60,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,810.12 : 100,075.74 = 40,071.31 : x
  2. Step 2: Convert to fraction form
    66,810.12/100,075.74 = 40,071.31/x
  3. Step 3: Cross multiply
    66,810.12x = 100,075.74 × 40,071.31
  4. Step 4: Simplify right side
    66,810.12x = 4,010,166,191.81
  5. Step 5: Solve for x
    x = 4,010,166,191.81/66,810.12
  6. Step 6: Final answer
    x = 60,023.33

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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.