Home / 90,708.30-135,953.10-46,312.20

Finding the Fourth Proportional to 90,708.30, 135,953.10 and 46,312.20

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Solution

The fourth proportional to 90,708.30, 135,953.10 and 46,312.20 is: 69,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,708.30 : 135,953.10 = 46,312.20 : x
  2. Step 2: Convert to fraction form
    90,708.30/135,953.10 = 46,312.20/x
  3. Step 3: Cross multiply
    90,708.30x = 135,953.10 × 46,312.20
  4. Step 4: Simplify right side
    90,708.30x = 6,296,287,157.82
  5. Step 5: Solve for x
    x = 6,296,287,157.82/90,708.30
  6. Step 6: Final answer
    x = 69,412.47

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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.