Home / 90,412.16-124,768.57-50,124.88

Finding the Fourth Proportional to 90,412.16, 124,768.57 and 50,124.88

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Solution

The fourth proportional to 90,412.16, 124,768.57 and 50,124.88 is: 69,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,412.16 : 124,768.57 = 50,124.88 : x
  2. Step 2: Convert to fraction form
    90,412.16/124,768.57 = 50,124.88/x
  3. Step 3: Cross multiply
    90,412.16x = 124,768.57 × 50,124.88
  4. Step 4: Simplify right side
    90,412.16x = 6,254,009,599.02
  5. Step 5: Solve for x
    x = 6,254,009,599.02/90,412.16
  6. Step 6: Final answer
    x = 69,172.22

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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.