Home / 90,898.02-125,437.77-53,178.66

Finding the Fourth Proportional to 90,898.02, 125,437.77 and 53,178.66

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Solution

The fourth proportional to 90,898.02, 125,437.77 and 53,178.66 is: 73,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,898.02 : 125,437.77 = 53,178.66 : x
  2. Step 2: Convert to fraction form
    90,898.02/125,437.77 = 53,178.66/x
  3. Step 3: Cross multiply
    90,898.02x = 125,437.77 × 53,178.66
  4. Step 4: Simplify right side
    90,898.02x = 6,670,612,521.99
  5. Step 5: Solve for x
    x = 6,670,612,521.99/90,898.02
  6. Step 6: Final answer
    x = 73,385.67

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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.