Home / 85,035.29-127,547.76-31,716.98

Finding the Fourth Proportional to 85,035.29, 127,547.76 and 31,716.98

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Solution

The fourth proportional to 85,035.29, 127,547.76 and 31,716.98 is: 47,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,035.29 : 127,547.76 = 31,716.98 : x
  2. Step 2: Convert to fraction form
    85,035.29/127,547.76 = 31,716.98/x
  3. Step 3: Cross multiply
    85,035.29x = 127,547.76 × 31,716.98
  4. Step 4: Simplify right side
    85,035.29x = 4,045,430,429.92
  5. Step 5: Solve for x
    x = 4,045,430,429.92/85,035.29
  6. Step 6: Final answer
    x = 47,573.55

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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.