Home / 72,002.60-99,332.88-45,126.80

Finding the Fourth Proportional to 72,002.60, 99,332.88 and 45,126.80

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Solution

The fourth proportional to 72,002.60, 99,332.88 and 45,126.80 is: 62,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,002.60 : 99,332.88 = 45,126.80 : x
  2. Step 2: Convert to fraction form
    72,002.60/99,332.88 = 45,126.80/x
  3. Step 3: Cross multiply
    72,002.60x = 99,332.88 × 45,126.80
  4. Step 4: Simplify right side
    72,002.60x = 4,482,575,009.18
  5. Step 5: Solve for x
    x = 4,482,575,009.18/72,002.60
  6. Step 6: Final answer
    x = 62,255.74

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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.