Home / 90,037.04-135,071.40-34,628.72

Finding the Fourth Proportional to 90,037.04, 135,071.40 and 34,628.72

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Solution

The fourth proportional to 90,037.04, 135,071.40 and 34,628.72 is: 51,949.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,037.04 : 135,071.40 = 34,628.72 : x
  2. Step 2: Convert to fraction form
    90,037.04/135,071.40 = 34,628.72/x
  3. Step 3: Cross multiply
    90,037.04x = 135,071.40 × 34,628.72
  4. Step 4: Simplify right side
    90,037.04x = 4,677,349,690.61
  5. Step 5: Solve for x
    x = 4,677,349,690.61/90,037.04
  6. Step 6: Final answer
    x = 51,949.17

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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.