Home / 81,458.48-112,408.07-47,472.50

Finding the Fourth Proportional to 81,458.48, 112,408.07 and 47,472.50

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Solution

The fourth proportional to 81,458.48, 112,408.07 and 47,472.50 is: 65,509.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,458.48 : 112,408.07 = 47,472.50 : x
  2. Step 2: Convert to fraction form
    81,458.48/112,408.07 = 47,472.50/x
  3. Step 3: Cross multiply
    81,458.48x = 112,408.07 × 47,472.50
  4. Step 4: Simplify right side
    81,458.48x = 5,336,291,303.67
  5. Step 5: Solve for x
    x = 5,336,291,303.67/81,458.48
  6. Step 6: Final answer
    x = 65,509.34

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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.