Home / 90,669.85-125,088.57-52,422.40

Finding the Fourth Proportional to 90,669.85, 125,088.57 and 52,422.40

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Solution

The fourth proportional to 90,669.85, 125,088.57 and 52,422.40 is: 72,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,669.85 : 125,088.57 = 52,422.40 : x
  2. Step 2: Convert to fraction form
    90,669.85/125,088.57 = 52,422.40/x
  3. Step 3: Cross multiply
    90,669.85x = 125,088.57 × 52,422.40
  4. Step 4: Simplify right side
    90,669.85x = 6,557,443,051.97
  5. Step 5: Solve for x
    x = 6,557,443,051.97/90,669.85
  6. Step 6: Final answer
    x = 72,322.20

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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.