Home / 90,417.13-135,607.16-34,237.86

Finding the Fourth Proportional to 90,417.13, 135,607.16 and 34,237.86

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Solution

The fourth proportional to 90,417.13, 135,607.16 and 34,237.86 is: 51,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,417.13 : 135,607.16 = 34,237.86 : x
  2. Step 2: Convert to fraction form
    90,417.13/135,607.16 = 34,237.86/x
  3. Step 3: Cross multiply
    90,417.13x = 135,607.16 × 34,237.86
  4. Step 4: Simplify right side
    90,417.13x = 4,642,898,536.15
  5. Step 5: Solve for x
    x = 4,642,898,536.15/90,417.13
  6. Step 6: Final answer
    x = 51,349.77

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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.