Home / 76,290.36-105,280.68-42,298.74

Finding the Fourth Proportional to 76,290.36, 105,280.68 and 42,298.74

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Solution

The fourth proportional to 76,290.36, 105,280.68 and 42,298.74 is: 58,372.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,290.36 : 105,280.68 = 42,298.74 : x
  2. Step 2: Convert to fraction form
    76,290.36/105,280.68 = 42,298.74/x
  3. Step 3: Cross multiply
    76,290.36x = 105,280.68 × 42,298.74
  4. Step 4: Simplify right side
    76,290.36x = 4,453,240,110.34
  5. Step 5: Solve for x
    x = 4,453,240,110.34/76,290.36
  6. Step 6: Final answer
    x = 58,372.25

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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.