Home / 85,852.46-128,752.50-59,368.70

Finding the Fourth Proportional to 85,852.46, 128,752.50 and 59,368.70

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Solution

The fourth proportional to 85,852.46, 128,752.50 and 59,368.70 is: 89,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,852.46 : 128,752.50 = 59,368.70 : x
  2. Step 2: Convert to fraction form
    85,852.46/128,752.50 = 59,368.70/x
  3. Step 3: Cross multiply
    85,852.46x = 128,752.50 × 59,368.70
  4. Step 4: Simplify right side
    85,852.46x = 7,643,868,546.75
  5. Step 5: Solve for x
    x = 7,643,868,546.75/85,852.46
  6. Step 6: Final answer
    x = 89,034.94

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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.