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Finding the Fourth Proportional to 65,332.60, 90,159.54 and 37,038.76

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Solution

The fourth proportional to 65,332.60, 90,159.54 and 37,038.76 is: 51,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,332.60 : 90,159.54 = 37,038.76 : x
  2. Step 2: Convert to fraction form
    65,332.60/90,159.54 = 37,038.76/x
  3. Step 3: Cross multiply
    65,332.60x = 90,159.54 × 37,038.76
  4. Step 4: Simplify right side
    65,332.60x = 3,339,397,563.77
  5. Step 5: Solve for x
    x = 3,339,397,563.77/65,332.60
  6. Step 6: Final answer
    x = 51,113.80

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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.