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Finding the Fourth Proportional to 72,041.69, 99,298.54 and 48,159.65

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Solution

The fourth proportional to 72,041.69, 99,298.54 and 48,159.65 is: 66,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.69 : 99,298.54 = 48,159.65 : x
  2. Step 2: Convert to fraction form
    72,041.69/99,298.54 = 48,159.65/x
  3. Step 3: Cross multiply
    72,041.69x = 99,298.54 × 48,159.65
  4. Step 4: Simplify right side
    72,041.69x = 4,782,182,931.91
  5. Step 5: Solve for x
    x = 4,782,182,931.91/72,041.69
  6. Step 6: Final answer
    x = 66,380.77

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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.