Home / 42,740.10-64,110.15-40,698.90

Finding the Fourth Proportional to 42,740.10, 64,110.15 and 40,698.90

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Solution

The fourth proportional to 42,740.10, 64,110.15 and 40,698.90 is: 61,048.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,740.10 : 64,110.15 = 40,698.90 : x
  2. Step 2: Convert to fraction form
    42,740.10/64,110.15 = 40,698.90/x
  3. Step 3: Cross multiply
    42,740.10x = 64,110.15 × 40,698.90
  4. Step 4: Simplify right side
    42,740.10x = 2,609,212,583.84
  5. Step 5: Solve for x
    x = 2,609,212,583.84/42,740.10
  6. Step 6: Final answer
    x = 61,048.35

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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.