Home / 77,549.13-107,015.04-47,384.87

Finding the Fourth Proportional to 77,549.13, 107,015.04 and 47,384.87

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Solution

The fourth proportional to 77,549.13, 107,015.04 and 47,384.87 is: 65,389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,549.13 : 107,015.04 = 47,384.87 : x
  2. Step 2: Convert to fraction form
    77,549.13/107,015.04 = 47,384.87/x
  3. Step 3: Cross multiply
    77,549.13x = 107,015.04 × 47,384.87
  4. Step 4: Simplify right side
    77,549.13x = 5,070,893,223.37
  5. Step 5: Solve for x
    x = 5,070,893,223.37/77,549.13
  6. Step 6: Final answer
    x = 65,389.43

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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.