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Finding the Fourth Proportional to 88,031, 121,482.98 and 50,305.16

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Solution

The fourth proportional to 88,031, 121,482.98 and 50,305.16 is: 69,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,031 : 121,482.98 = 50,305.16 : x
  2. Step 2: Convert to fraction form
    88,031/121,482.98 = 50,305.16/x
  3. Step 3: Cross multiply
    88,031x = 121,482.98 × 50,305.16
  4. Step 4: Simplify right side
    88,031x = 6,111,220,746.18
  5. Step 5: Solve for x
    x = 6,111,220,746.18/88,031
  6. Step 6: Final answer
    x = 69,421.24

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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.