Home / 105,335.99-145,363.69-57,589.35

Finding the Fourth Proportional to 105,335.99, 145,363.69 and 57,589.35

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Solution

The fourth proportional to 105,335.99, 145,363.69 and 57,589.35 is: 79,473.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,335.99 : 145,363.69 = 57,589.35 : x
  2. Step 2: Convert to fraction form
    105,335.99/145,363.69 = 57,589.35/x
  3. Step 3: Cross multiply
    105,335.99x = 145,363.69 × 57,589.35
  4. Step 4: Simplify right side
    105,335.99x = 8,371,401,012.11
  5. Step 5: Solve for x
    x = 8,371,401,012.11/105,335.99
  6. Step 6: Final answer
    x = 79,473.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.