Home / 90,260.83-124,560.95-49,978.32

Finding the Fourth Proportional to 90,260.83, 124,560.95 and 49,978.32

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Solution

The fourth proportional to 90,260.83, 124,560.95 and 49,978.32 is: 68,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,260.83 : 124,560.95 = 49,978.32 : x
  2. Step 2: Convert to fraction form
    90,260.83/124,560.95 = 49,978.32/x
  3. Step 3: Cross multiply
    90,260.83x = 124,560.95 × 49,978.32
  4. Step 4: Simplify right side
    90,260.83x = 6,225,347,018.60
  5. Step 5: Solve for x
    x = 6,225,347,018.60/90,260.83
  6. Step 6: Final answer
    x = 68,970.64

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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.