Home / 72,307.53-99,783.63-40,476.69

Finding the Fourth Proportional to 72,307.53, 99,783.63 and 40,476.69

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Solution

The fourth proportional to 72,307.53, 99,783.63 and 40,476.69 is: 55,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,307.53 : 99,783.63 = 40,476.69 : x
  2. Step 2: Convert to fraction form
    72,307.53/99,783.63 = 40,476.69/x
  3. Step 3: Cross multiply
    72,307.53x = 99,783.63 × 40,476.69
  4. Step 4: Simplify right side
    72,307.53x = 4,038,911,058.58
  5. Step 5: Solve for x
    x = 4,038,911,058.58/72,307.53
  6. Step 6: Final answer
    x = 55,857.41

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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.