Home / 39,768.72-59,666.04-20,045.76

Finding the Fourth Proportional to 39,768.72, 59,666.04 and 20,045.76

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Solution

The fourth proportional to 39,768.72, 59,666.04 and 20,045.76 is: 30,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.72 : 59,666.04 = 20,045.76 : x
  2. Step 2: Convert to fraction form
    39,768.72/59,666.04 = 20,045.76/x
  3. Step 3: Cross multiply
    39,768.72x = 59,666.04 × 20,045.76
  4. Step 4: Simplify right side
    39,768.72x = 1,196,051,117.99
  5. Step 5: Solve for x
    x = 1,196,051,117.99/39,768.72
  6. Step 6: Final answer
    x = 30,075.17

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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.