Home / 76,443.24-105,416.59-70,408.95

Finding the Fourth Proportional to 76,443.24, 105,416.59 and 70,408.95

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Solution

The fourth proportional to 76,443.24, 105,416.59 and 70,408.95 is: 97,095.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,443.24 : 105,416.59 = 70,408.95 : x
  2. Step 2: Convert to fraction form
    76,443.24/105,416.59 = 70,408.95/x
  3. Step 3: Cross multiply
    76,443.24x = 105,416.59 × 70,408.95
  4. Step 4: Simplify right side
    76,443.24x = 7,422,270,975.16
  5. Step 5: Solve for x
    x = 7,422,270,975.16/76,443.24
  6. Step 6: Final answer
    x = 97,095.19

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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.