Home / 90,281.09-135,347.74-34,089.31

Finding the Fourth Proportional to 90,281.09, 135,347.74 and 34,089.31

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Solution

The fourth proportional to 90,281.09, 135,347.74 and 34,089.31 is: 51,106.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,281.09 : 135,347.74 = 34,089.31 : x
  2. Step 2: Convert to fraction form
    90,281.09/135,347.74 = 34,089.31/x
  3. Step 3: Cross multiply
    90,281.09x = 135,347.74 × 34,089.31
  4. Step 4: Simplify right side
    90,281.09x = 4,613,911,342.37
  5. Step 5: Solve for x
    x = 4,613,911,342.37/90,281.09
  6. Step 6: Final answer
    x = 51,106.07

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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.