Home / 90,437.78-124,810.54-50,155.40

Finding the Fourth Proportional to 90,437.78, 124,810.54 and 50,155.40

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Solution

The fourth proportional to 90,437.78, 124,810.54 and 50,155.40 is: 69,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,437.78 : 124,810.54 = 50,155.40 : x
  2. Step 2: Convert to fraction form
    90,437.78/124,810.54 = 50,155.40/x
  3. Step 3: Cross multiply
    90,437.78x = 124,810.54 × 50,155.40
  4. Step 4: Simplify right side
    90,437.78x = 6,259,922,557.92
  5. Step 5: Solve for x
    x = 6,259,922,557.92/90,437.78
  6. Step 6: Final answer
    x = 69,218.00

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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.