Home / 90,155.48-135,264.40-34,011.68

Finding the Fourth Proportional to 90,155.48, 135,264.40 and 34,011.68

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Solution

The fourth proportional to 90,155.48, 135,264.40 and 34,011.68 is: 51,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,155.48 : 135,264.40 = 34,011.68 : x
  2. Step 2: Convert to fraction form
    90,155.48/135,264.40 = 34,011.68/x
  3. Step 3: Cross multiply
    90,155.48x = 135,264.40 × 34,011.68
  4. Step 4: Simplify right side
    90,155.48x = 4,600,569,488.19
  5. Step 5: Solve for x
    x = 4,600,569,488.19/90,155.48
  6. Step 6: Final answer
    x = 51,029.28

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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.