Home / 90,300.02-135,458.93-31,127.90

Finding the Fourth Proportional to 90,300.02, 135,458.93 and 31,127.90

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Solution

The fourth proportional to 90,300.02, 135,458.93 and 31,127.90 is: 46,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,300.02 : 135,458.93 = 31,127.90 : x
  2. Step 2: Convert to fraction form
    90,300.02/135,458.93 = 31,127.90/x
  3. Step 3: Cross multiply
    90,300.02x = 135,458.93 × 31,127.90
  4. Step 4: Simplify right side
    90,300.02x = 4,216,551,427.67
  5. Step 5: Solve for x
    x = 4,216,551,427.67/90,300.02
  6. Step 6: Final answer
    x = 46,694.91

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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.