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Finding the Fourth Proportional to 65,437.35, 90,303.98 and 37,143.51

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Solution

The fourth proportional to 65,437.35, 90,303.98 and 37,143.51 is: 51,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,437.35 : 90,303.98 = 37,143.51 : x
  2. Step 2: Convert to fraction form
    65,437.35/90,303.98 = 37,143.51/x
  3. Step 3: Cross multiply
    65,437.35x = 90,303.98 × 37,143.51
  4. Step 4: Simplify right side
    65,437.35x = 3,354,206,598.45
  5. Step 5: Solve for x
    x = 3,354,206,598.45/65,437.35
  6. Step 6: Final answer
    x = 51,258.29

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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.