Home / 90,115.36-124,374.63-52,411.48

Finding the Fourth Proportional to 90,115.36, 124,374.63 and 52,411.48

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Solution

The fourth proportional to 90,115.36, 124,374.63 and 52,411.48 is: 72,336.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,115.36 : 124,374.63 = 52,411.48 : x
  2. Step 2: Convert to fraction form
    90,115.36/124,374.63 = 52,411.48/x
  3. Step 3: Cross multiply
    90,115.36x = 124,374.63 × 52,411.48
  4. Step 4: Simplify right side
    90,115.36x = 6,518,658,432.75
  5. Step 5: Solve for x
    x = 6,518,658,432.75/90,115.36
  6. Step 6: Final answer
    x = 72,336.82

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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.