Home / 91,415.04-126,153.72-53,689.92

Finding the Fourth Proportional to 91,415.04, 126,153.72 and 53,689.92

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Solution

The fourth proportional to 91,415.04, 126,153.72 and 53,689.92 is: 74,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,415.04 : 126,153.72 = 53,689.92 : x
  2. Step 2: Convert to fraction form
    91,415.04/126,153.72 = 53,689.92/x
  3. Step 3: Cross multiply
    91,415.04x = 126,153.72 × 53,689.92
  4. Step 4: Simplify right side
    91,415.04x = 6,773,183,134.50
  5. Step 5: Solve for x
    x = 6,773,183,134.50/91,415.04
  6. Step 6: Final answer
    x = 74,092.66

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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.