Home / 76,335.32-105,349.21-42,354.74

Finding the Fourth Proportional to 76,335.32, 105,349.21 and 42,354.74

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Solution

The fourth proportional to 76,335.32, 105,349.21 and 42,354.74 is: 58,453.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,335.32 : 105,349.21 = 42,354.74 : x
  2. Step 2: Convert to fraction form
    76,335.32/105,349.21 = 42,354.74/x
  3. Step 3: Cross multiply
    76,335.32x = 105,349.21 × 42,354.74
  4. Step 4: Simplify right side
    76,335.32x = 4,462,038,556.24
  5. Step 5: Solve for x
    x = 4,462,038,556.24/76,335.32
  6. Step 6: Final answer
    x = 58,453.13

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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.