Home / 90,430.32-124,787.75-50,142.59

Finding the Fourth Proportional to 90,430.32, 124,787.75 and 50,142.59

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Solution

The fourth proportional to 90,430.32, 124,787.75 and 50,142.59 is: 69,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,430.32 : 124,787.75 = 50,142.59 : x
  2. Step 2: Convert to fraction form
    90,430.32/124,787.75 = 50,142.59/x
  3. Step 3: Cross multiply
    90,430.32x = 124,787.75 × 50,142.59
  4. Step 4: Simplify right side
    90,430.32x = 6,257,180,642.67
  5. Step 5: Solve for x
    x = 6,257,180,642.67/90,430.32
  6. Step 6: Final answer
    x = 69,193.40

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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.