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Finding the Fourth Proportional to 65,703.60, 90,666.72 and 37,409.04

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Solution

The fourth proportional to 65,703.60, 90,666.72 and 37,409.04 is: 51,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,703.60 : 90,666.72 = 37,409.04 : x
  2. Step 2: Convert to fraction form
    65,703.60/90,666.72 = 37,409.04/x
  3. Step 3: Cross multiply
    65,703.60x = 90,666.72 × 37,409.04
  4. Step 4: Simplify right side
    65,703.60x = 3,391,754,955.15
  5. Step 5: Solve for x
    x = 3,391,754,955.15/65,703.60
  6. Step 6: Final answer
    x = 51,622.06

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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.