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Finding the Fourth Proportional to 77,038.88, 106,302.40 and 45,200.48

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Solution

The fourth proportional to 77,038.88, 106,302.40 and 45,200.48 is: 62,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,038.88 : 106,302.40 = 45,200.48 : x
  2. Step 2: Convert to fraction form
    77,038.88/106,302.40 = 45,200.48/x
  3. Step 3: Cross multiply
    77,038.88x = 106,302.40 × 45,200.48
  4. Step 4: Simplify right side
    77,038.88x = 4,804,919,505.15
  5. Step 5: Solve for x
    x = 4,804,919,505.15/77,038.88
  6. Step 6: Final answer
    x = 62,370.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.