Home / 64,303.07-88,781.57-40,140.83

Finding the Fourth Proportional to 64,303.07, 88,781.57 and 40,140.83

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Solution

The fourth proportional to 64,303.07, 88,781.57 and 40,140.83 is: 55,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,303.07 : 88,781.57 = 40,140.83 : x
  2. Step 2: Convert to fraction form
    64,303.07/88,781.57 = 40,140.83/x
  3. Step 3: Cross multiply
    64,303.07x = 88,781.57 × 40,140.83
  4. Step 4: Simplify right side
    64,303.07x = 3,563,765,263.89
  5. Step 5: Solve for x
    x = 3,563,765,263.89/64,303.07
  6. Step 6: Final answer
    x = 55,421.39

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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.