Home / 76,254.08-105,230.56-42,720.32

Finding the Fourth Proportional to 76,254.08, 105,230.56 and 42,720.32

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Solution

The fourth proportional to 76,254.08, 105,230.56 and 42,720.32 is: 58,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,254.08 : 105,230.56 = 42,720.32 : x
  2. Step 2: Convert to fraction form
    76,254.08/105,230.56 = 42,720.32/x
  3. Step 3: Cross multiply
    76,254.08x = 105,230.56 × 42,720.32
  4. Step 4: Simplify right side
    76,254.08x = 4,495,483,196.98
  5. Step 5: Solve for x
    x = 4,495,483,196.98/76,254.08
  6. Step 6: Final answer
    x = 58,954.00

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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.