Home / 91,215.10-125,875.64-50,929.55

Finding the Fourth Proportional to 91,215.10, 125,875.64 and 50,929.55

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Solution

The fourth proportional to 91,215.10, 125,875.64 and 50,929.55 is: 70,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,215.10 : 125,875.64 = 50,929.55 : x
  2. Step 2: Convert to fraction form
    91,215.10/125,875.64 = 50,929.55/x
  3. Step 3: Cross multiply
    91,215.10x = 125,875.64 × 50,929.55
  4. Step 4: Simplify right side
    91,215.10x = 6,410,789,199.11
  5. Step 5: Solve for x
    x = 6,410,789,199.11/91,215.10
  6. Step 6: Final answer
    x = 70,282.11

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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.