Home / 90,754.81-125,223.28-53,021.77

Finding the Fourth Proportional to 90,754.81, 125,223.28 and 53,021.77

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Solution

The fourth proportional to 90,754.81, 125,223.28 and 53,021.77 is: 73,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,754.81 : 125,223.28 = 53,021.77 : x
  2. Step 2: Convert to fraction form
    90,754.81/125,223.28 = 53,021.77/x
  3. Step 3: Cross multiply
    90,754.81x = 125,223.28 × 53,021.77
  4. Step 4: Simplify right side
    90,754.81x = 6,639,559,950.81
  5. Step 5: Solve for x
    x = 6,639,559,950.81/90,754.81
  6. Step 6: Final answer
    x = 73,159.32

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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.