Home / 90,461.53-124,831.82-50,172.40

Finding the Fourth Proportional to 90,461.53, 124,831.82 and 50,172.40

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Solution

The fourth proportional to 90,461.53, 124,831.82 and 50,172.40 is: 69,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,461.53 : 124,831.82 = 50,172.40 : x
  2. Step 2: Convert to fraction form
    90,461.53/124,831.82 = 50,172.40/x
  3. Step 3: Cross multiply
    90,461.53x = 124,831.82 × 50,172.40
  4. Step 4: Simplify right side
    90,461.53x = 6,263,111,130.75
  5. Step 5: Solve for x
    x = 6,263,111,130.75/90,461.53
  6. Step 6: Final answer
    x = 69,235.08

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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.