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Finding the Fourth Proportional to 84,303.34, 116,432.49 and 65,411.53

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Solution

The fourth proportional to 84,303.34, 116,432.49 and 65,411.53 is: 90,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,303.34 : 116,432.49 = 65,411.53 : x
  2. Step 2: Convert to fraction form
    84,303.34/116,432.49 = 65,411.53/x
  3. Step 3: Cross multiply
    84,303.34x = 116,432.49 × 65,411.53
  4. Step 4: Simplify right side
    84,303.34x = 7,616,027,312.61
  5. Step 5: Solve for x
    x = 7,616,027,312.61/84,303.34
  6. Step 6: Final answer
    x = 90,340.75

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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.