Home / 75,048.48-103,521.78-49,555.08

Finding the Fourth Proportional to 75,048.48, 103,521.78 and 49,555.08

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Solution

The fourth proportional to 75,048.48, 103,521.78 and 49,555.08 is: 68,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,048.48 : 103,521.78 = 49,555.08 : x
  2. Step 2: Convert to fraction form
    75,048.48/103,521.78 = 49,555.08/x
  3. Step 3: Cross multiply
    75,048.48x = 103,521.78 × 49,555.08
  4. Step 4: Simplify right side
    75,048.48x = 5,130,030,089.64
  5. Step 5: Solve for x
    x = 5,130,030,089.64/75,048.48
  6. Step 6: Final answer
    x = 68,356.22

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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.