Home / 42,436.87-63,647.10-40,329.45

Finding the Fourth Proportional to 42,436.87, 63,647.10 and 40,329.45

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Solution

The fourth proportional to 42,436.87, 63,647.10 and 40,329.45 is: 60,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,436.87 : 63,647.10 = 40,329.45 : x
  2. Step 2: Convert to fraction form
    42,436.87/63,647.10 = 40,329.45/x
  3. Step 3: Cross multiply
    42,436.87x = 63,647.10 × 40,329.45
  4. Step 4: Simplify right side
    42,436.87x = 2,566,852,537.10
  5. Step 5: Solve for x
    x = 2,566,852,537.10/42,436.87
  6. Step 6: Final answer
    x = 60,486.38

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1.5x scale

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.