Home / 90,420.51-124,779.69-50,134.29

Finding the Fourth Proportional to 90,420.51, 124,779.69 and 50,134.29

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Solution

The fourth proportional to 90,420.51, 124,779.69 and 50,134.29 is: 69,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,420.51 : 124,779.69 = 50,134.29 : x
  2. Step 2: Convert to fraction form
    90,420.51/124,779.69 = 50,134.29/x
  3. Step 3: Cross multiply
    90,420.51x = 124,779.69 × 50,134.29
  4. Step 4: Simplify right side
    90,420.51x = 6,255,741,164.57
  5. Step 5: Solve for x
    x = 6,255,741,164.57/90,420.51
  6. Step 6: Final answer
    x = 69,184.98

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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.