Home / 76,324.32-105,325.65-42,332.31

Finding the Fourth Proportional to 76,324.32, 105,325.65 and 42,332.31

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Solution

The fourth proportional to 76,324.32, 105,325.65 and 42,332.31 is: 58,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,324.32 : 105,325.65 = 42,332.31 : x
  2. Step 2: Convert to fraction form
    76,324.32/105,325.65 = 42,332.31/x
  3. Step 3: Cross multiply
    76,324.32x = 105,325.65 × 42,332.31
  4. Step 4: Simplify right side
    76,324.32x = 4,458,678,066.75
  5. Step 5: Solve for x
    x = 4,458,678,066.75/76,324.32
  6. Step 6: Final answer
    x = 58,417.53

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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.