Home / 64,931.36-89,591.04-42,267.92

Finding the Fourth Proportional to 64,931.36, 89,591.04 and 42,267.92

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Solution

The fourth proportional to 64,931.36, 89,591.04 and 42,267.92 is: 58,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,931.36 : 89,591.04 = 42,267.92 : x
  2. Step 2: Convert to fraction form
    64,931.36/89,591.04 = 42,267.92/x
  3. Step 3: Cross multiply
    64,931.36x = 89,591.04 × 42,267.92
  4. Step 4: Simplify right side
    64,931.36x = 3,786,826,911.44
  5. Step 5: Solve for x
    x = 3,786,826,911.44/64,931.36
  6. Step 6: Final answer
    x = 58,320.46

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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.