Home / 74,075.68-102,224.72-40,543.52

Finding the Fourth Proportional to 74,075.68, 102,224.72 and 40,543.52

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Solution

The fourth proportional to 74,075.68, 102,224.72 and 40,543.52 is: 55,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,075.68 : 102,224.72 = 40,543.52 : x
  2. Step 2: Convert to fraction form
    74,075.68/102,224.72 = 40,543.52/x
  3. Step 3: Cross multiply
    74,075.68x = 102,224.72 × 40,543.52
  4. Step 4: Simplify right side
    74,075.68x = 4,144,549,979.81
  5. Step 5: Solve for x
    x = 4,144,549,979.81/74,075.68
  6. Step 6: Final answer
    x = 55,950.21

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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.