Home / 55,831.68-77,048.46-30,681

Finding the Fourth Proportional to 55,831.68, 77,048.46 and 30,681

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Solution

The fourth proportional to 55,831.68, 77,048.46 and 30,681 is: 42,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,831.68 : 77,048.46 = 30,681 : x
  2. Step 2: Convert to fraction form
    55,831.68/77,048.46 = 30,681/x
  3. Step 3: Cross multiply
    55,831.68x = 77,048.46 × 30,681
  4. Step 4: Simplify right side
    55,831.68x = 2,363,923,801.26
  5. Step 5: Solve for x
    x = 2,363,923,801.26/55,831.68
  6. Step 6: Final answer
    x = 42,340.19

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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.