Home / 90,501.86-124,860.78-52,260.32

Finding the Fourth Proportional to 90,501.86, 124,860.78 and 52,260.32

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Solution

The fourth proportional to 90,501.86, 124,860.78 and 52,260.32 is: 72,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,501.86 : 124,860.78 = 52,260.32 : x
  2. Step 2: Convert to fraction form
    90,501.86/124,860.78 = 52,260.32/x
  3. Step 3: Cross multiply
    90,501.86x = 124,860.78 × 52,260.32
  4. Step 4: Simplify right side
    90,501.86x = 6,525,264,318.25
  5. Step 5: Solve for x
    x = 6,525,264,318.25/90,501.86
  6. Step 6: Final answer
    x = 72,100.89

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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.