Home / 90,902.81-125,445.56-50,617.05

Finding the Fourth Proportional to 90,902.81, 125,445.56 and 50,617.05

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Solution

The fourth proportional to 90,902.81, 125,445.56 and 50,617.05 is: 69,851.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,902.81 : 125,445.56 = 50,617.05 : x
  2. Step 2: Convert to fraction form
    90,902.81/125,445.56 = 50,617.05/x
  3. Step 3: Cross multiply
    90,902.81x = 125,445.56 × 50,617.05
  4. Step 4: Simplify right side
    90,902.81x = 6,349,683,929.71
  5. Step 5: Solve for x
    x = 6,349,683,929.71/90,902.81
  6. Step 6: Final answer
    x = 69,851.35

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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.