Home / 76,328.88-105,331.84-42,337.28

Finding the Fourth Proportional to 76,328.88, 105,331.84 and 42,337.28

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Solution

The fourth proportional to 76,328.88, 105,331.84 and 42,337.28 is: 58,424.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328.88 : 105,331.84 = 42,337.28 : x
  2. Step 2: Convert to fraction form
    76,328.88/105,331.84 = 42,337.28/x
  3. Step 3: Cross multiply
    76,328.88x = 105,331.84 × 42,337.28
  4. Step 4: Simplify right side
    76,328.88x = 4,459,463,998.63
  5. Step 5: Solve for x
    x = 4,459,463,998.63/76,328.88
  6. Step 6: Final answer
    x = 58,424.33

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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.