Home / 90,710.68-136,035.74-38,110.36

Finding the Fourth Proportional to 90,710.68, 136,035.74 and 38,110.36

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Solution

The fourth proportional to 90,710.68, 136,035.74 and 38,110.36 is: 57,152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,710.68 : 136,035.74 = 38,110.36 : x
  2. Step 2: Convert to fraction form
    90,710.68/136,035.74 = 38,110.36/x
  3. Step 3: Cross multiply
    90,710.68x = 136,035.74 × 38,110.36
  4. Step 4: Simplify right side
    90,710.68x = 5,184,371,024.27
  5. Step 5: Solve for x
    x = 5,184,371,024.27/90,710.68
  6. Step 6: Final answer
    x = 57,152.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.