Home / 105,717.76-145,885.44-57,962.24

Finding the Fourth Proportional to 105,717.76, 145,885.44 and 57,962.24

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Solution

The fourth proportional to 105,717.76, 145,885.44 and 57,962.24 is: 79,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,717.76 : 145,885.44 = 57,962.24 : x
  2. Step 2: Convert to fraction form
    105,717.76/145,885.44 = 57,962.24/x
  3. Step 3: Cross multiply
    105,717.76x = 145,885.44 × 57,962.24
  4. Step 4: Simplify right side
    105,717.76x = 8,455,846,885.79
  5. Step 5: Solve for x
    x = 8,455,846,885.79/105,717.76
  6. Step 6: Final answer
    x = 79,985.11

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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.