Home / 77,378.04-106,681.75-50,105.64

Finding the Fourth Proportional to 77,378.04, 106,681.75 and 50,105.64

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Solution

The fourth proportional to 77,378.04, 106,681.75 and 50,105.64 is: 69,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,378.04 : 106,681.75 = 50,105.64 : x
  2. Step 2: Convert to fraction form
    77,378.04/106,681.75 = 50,105.64/x
  3. Step 3: Cross multiply
    77,378.04x = 106,681.75 × 50,105.64
  4. Step 4: Simplify right side
    77,378.04x = 5,345,357,360.07
  5. Step 5: Solve for x
    x = 5,345,357,360.07/77,378.04
  6. Step 6: Final answer
    x = 69,081.06

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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.