Home / 77,307.12-106,698.96-45,503.28

Finding the Fourth Proportional to 77,307.12, 106,698.96 and 45,503.28

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Solution

The fourth proportional to 77,307.12, 106,698.96 and 45,503.28 is: 62,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,307.12 : 106,698.96 = 45,503.28 : x
  2. Step 2: Convert to fraction form
    77,307.12/106,698.96 = 45,503.28/x
  3. Step 3: Cross multiply
    77,307.12x = 106,698.96 × 45,503.28
  4. Step 4: Simplify right side
    77,307.12x = 4,855,152,652.59
  5. Step 5: Solve for x
    x = 4,855,152,652.59/77,307.12
  6. Step 6: Final answer
    x = 62,803.43

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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.