Home / 90,313.72-135,477.06-31,148.53

Finding the Fourth Proportional to 90,313.72, 135,477.06 and 31,148.53

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Solution

The fourth proportional to 90,313.72, 135,477.06 and 31,148.53 is: 46,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,313.72 : 135,477.06 = 31,148.53 : x
  2. Step 2: Convert to fraction form
    90,313.72/135,477.06 = 31,148.53/x
  3. Step 3: Cross multiply
    90,313.72x = 135,477.06 × 31,148.53
  4. Step 4: Simplify right side
    90,313.72x = 4,219,911,267.72
  5. Step 5: Solve for x
    x = 4,219,911,267.72/90,313.72
  6. Step 6: Final answer
    x = 46,725.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.