Home / 76,915.22-106,143.01-42,459.98

Finding the Fourth Proportional to 76,915.22, 106,143.01 and 42,459.98

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Solution

The fourth proportional to 76,915.22, 106,143.01 and 42,459.98 is: 58,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,915.22 : 106,143.01 = 42,459.98 : x
  2. Step 2: Convert to fraction form
    76,915.22/106,143.01 = 42,459.98/x
  3. Step 3: Cross multiply
    76,915.22x = 106,143.01 × 42,459.98
  4. Step 4: Simplify right side
    76,915.22x = 4,506,829,444.87
  5. Step 5: Solve for x
    x = 4,506,829,444.87/76,915.22
  6. Step 6: Final answer
    x = 58,594.77

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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.