Home / 76,242.04-105,217.36-42,250.45

Finding the Fourth Proportional to 76,242.04, 105,217.36 and 42,250.45

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Solution

The fourth proportional to 76,242.04, 105,217.36 and 42,250.45 is: 58,307.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,242.04 : 105,217.36 = 42,250.45 : x
  2. Step 2: Convert to fraction form
    76,242.04/105,217.36 = 42,250.45/x
  3. Step 3: Cross multiply
    76,242.04x = 105,217.36 × 42,250.45
  4. Step 4: Simplify right side
    76,242.04x = 4,445,480,439.14
  5. Step 5: Solve for x
    x = 4,445,480,439.14/76,242.04
  6. Step 6: Final answer
    x = 58,307.47

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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.