Home / 42,709.09-64,075.34-20,541.01

Finding the Fourth Proportional to 42,709.09, 64,075.34 and 20,541.01

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Solution

The fourth proportional to 42,709.09, 64,075.34 and 20,541.01 is: 30,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,709.09 : 64,075.34 = 20,541.01 : x
  2. Step 2: Convert to fraction form
    42,709.09/64,075.34 = 20,541.01/x
  3. Step 3: Cross multiply
    42,709.09x = 64,075.34 × 20,541.01
  4. Step 4: Simplify right side
    42,709.09x = 1,316,172,096.99
  5. Step 5: Solve for x
    x = 1,316,172,096.99/42,709.09
  6. Step 6: Final answer
    x = 30,817.14

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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.