Home / 90,298.89-135,457.25-31,126.77

Finding the Fourth Proportional to 90,298.89, 135,457.25 and 31,126.77

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Solution

The fourth proportional to 90,298.89, 135,457.25 and 31,126.77 is: 46,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,298.89 : 135,457.25 = 31,126.77 : x
  2. Step 2: Convert to fraction form
    90,298.89/135,457.25 = 31,126.77/x
  3. Step 3: Cross multiply
    90,298.89x = 135,457.25 × 31,126.77
  4. Step 4: Simplify right side
    90,298.89x = 4,216,346,509.95
  5. Step 5: Solve for x
    x = 4,216,346,509.95/90,298.89
  6. Step 6: Final answer
    x = 46,693.23

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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.