Home / 72,277.08-99,746.55-40,445.70

Finding the Fourth Proportional to 72,277.08, 99,746.55 and 40,445.70

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Solution

The fourth proportional to 72,277.08, 99,746.55 and 40,445.70 is: 55,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,277.08 : 99,746.55 = 40,445.70 : x
  2. Step 2: Convert to fraction form
    72,277.08/99,746.55 = 40,445.70/x
  3. Step 3: Cross multiply
    72,277.08x = 99,746.55 × 40,445.70
  4. Step 4: Simplify right side
    72,277.08x = 4,034,319,037.34
  5. Step 5: Solve for x
    x = 4,034,319,037.34/72,277.08
  6. Step 6: Final answer
    x = 55,817.40

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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.