Home / 77,416.48-106,835.88-45,150.20

Finding the Fourth Proportional to 77,416.48, 106,835.88 and 45,150.20

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Solution

The fourth proportional to 77,416.48, 106,835.88 and 45,150.20 is: 62,307.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,416.48 : 106,835.88 = 45,150.20 : x
  2. Step 2: Convert to fraction form
    77,416.48/106,835.88 = 45,150.20/x
  3. Step 3: Cross multiply
    77,416.48x = 106,835.88 × 45,150.20
  4. Step 4: Simplify right side
    77,416.48x = 4,823,661,349.18
  5. Step 5: Solve for x
    x = 4,823,661,349.18/77,416.48
  6. Step 6: Final answer
    x = 62,307.94

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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.