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Finding the Fourth Proportional to 69,030.70, 103,473.15 and 39,384.70

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Solution

The fourth proportional to 69,030.70, 103,473.15 and 39,384.70 is: 59,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,030.70 : 103,473.15 = 39,384.70 : x
  2. Step 2: Convert to fraction form
    69,030.70/103,473.15 = 39,384.70/x
  3. Step 3: Cross multiply
    69,030.70x = 103,473.15 × 39,384.70
  4. Step 4: Simplify right side
    69,030.70x = 4,075,258,970.81
  5. Step 5: Solve for x
    x = 4,075,258,970.81/69,030.70
  6. Step 6: Final answer
    x = 59,035.46

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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.