Home / 81,624.90-112,642.26-45,814.95

Finding the Fourth Proportional to 81,624.90, 112,642.26 and 45,814.95

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Solution

The fourth proportional to 81,624.90, 112,642.26 and 45,814.95 is: 63,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,624.90 : 112,642.26 = 45,814.95 : x
  2. Step 2: Convert to fraction form
    81,624.90/112,642.26 = 45,814.95/x
  3. Step 3: Cross multiply
    81,624.90x = 112,642.26 × 45,814.95
  4. Step 4: Simplify right side
    81,624.90x = 5,160,699,509.79
  5. Step 5: Solve for x
    x = 5,160,699,509.79/81,624.90
  6. Step 6: Final answer
    x = 63,224.57

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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.