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Finding the Fourth Proportional to 70,077.90, 105,038.67 and 27,946.92

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Solution

The fourth proportional to 70,077.90, 105,038.67 and 27,946.92 is: 41,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,077.90 : 105,038.67 = 27,946.92 : x
  2. Step 2: Convert to fraction form
    70,077.90/105,038.67 = 27,946.92/x
  3. Step 3: Cross multiply
    70,077.90x = 105,038.67 × 27,946.92
  4. Step 4: Simplify right side
    70,077.90x = 2,935,507,307.40
  5. Step 5: Solve for x
    x = 2,935,507,307.40/70,077.90
  6. Step 6: Final answer
    x = 41,889.20

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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.