Home / 73,985.68-102,088.32-42,155.20

Finding the Fourth Proportional to 73,985.68, 102,088.32 and 42,155.20

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Solution

The fourth proportional to 73,985.68, 102,088.32 and 42,155.20 is: 58,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985.68 : 102,088.32 = 42,155.20 : x
  2. Step 2: Convert to fraction form
    73,985.68/102,088.32 = 42,155.20/x
  3. Step 3: Cross multiply
    73,985.68x = 102,088.32 × 42,155.20
  4. Step 4: Simplify right side
    73,985.68x = 4,303,553,547.26
  5. Step 5: Solve for x
    x = 4,303,553,547.26/73,985.68
  6. Step 6: Final answer
    x = 58,167.39

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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.