Home / 72,416.07-99,938.28-40,587.02

Finding the Fourth Proportional to 72,416.07, 99,938.28 and 40,587.02

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Solution

The fourth proportional to 72,416.07, 99,938.28 and 40,587.02 is: 56,012.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,416.07 : 99,938.28 = 40,587.02 : x
  2. Step 2: Convert to fraction form
    72,416.07/99,938.28 = 40,587.02/x
  3. Step 3: Cross multiply
    72,416.07x = 99,938.28 × 40,587.02
  4. Step 4: Simplify right side
    72,416.07x = 4,056,196,969.13
  5. Step 5: Solve for x
    x = 4,056,196,969.13/72,416.07
  6. Step 6: Final answer
    x = 56,012.39

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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.