Home / 90,237.51-135,353.46-42,886.70

Finding the Fourth Proportional to 90,237.51, 135,353.46 and 42,886.70

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Solution

The fourth proportional to 90,237.51, 135,353.46 and 42,886.70 is: 64,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,237.51 : 135,353.46 = 42,886.70 : x
  2. Step 2: Convert to fraction form
    90,237.51/135,353.46 = 42,886.70/x
  3. Step 3: Cross multiply
    90,237.51x = 135,353.46 × 42,886.70
  4. Step 4: Simplify right side
    90,237.51x = 5,804,863,224.62
  5. Step 5: Solve for x
    x = 5,804,863,224.62/90,237.51
  6. Step 6: Final answer
    x = 64,328.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.