Home / 42,758.21-64,170.16-40,563.08

Finding the Fourth Proportional to 42,758.21, 64,170.16 and 40,563.08

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Solution

The fourth proportional to 42,758.21, 64,170.16 and 40,563.08 is: 60,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,758.21 : 64,170.16 = 40,563.08 : x
  2. Step 2: Convert to fraction form
    42,758.21/64,170.16 = 40,563.08/x
  3. Step 3: Cross multiply
    42,758.21x = 64,170.16 × 40,563.08
  4. Step 4: Simplify right side
    42,758.21x = 2,602,939,152.07
  5. Step 5: Solve for x
    x = 2,602,939,152.07/42,758.21
  6. Step 6: Final answer
    x = 60,875.77

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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.