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Finding the Fourth Proportional to 77,169.60, 106,506.36 and 45,346.32

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Solution

The fourth proportional to 77,169.60, 106,506.36 and 45,346.32 is: 62,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,169.60 : 106,506.36 = 45,346.32 : x
  2. Step 2: Convert to fraction form
    77,169.60/106,506.36 = 45,346.32/x
  3. Step 3: Cross multiply
    77,169.60x = 106,506.36 × 45,346.32
  4. Step 4: Simplify right side
    77,169.60x = 4,829,671,482.60
  5. Step 5: Solve for x
    x = 4,829,671,482.60/77,169.60
  6. Step 6: Final answer
    x = 62,585.16

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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.