Home / 72,149.15-99,501.36-45,294.16

Finding the Fourth Proportional to 72,149.15, 99,501.36 and 45,294.16

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Solution

The fourth proportional to 72,149.15, 99,501.36 and 45,294.16 is: 62,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,149.15 : 99,501.36 = 45,294.16 : x
  2. Step 2: Convert to fraction form
    72,149.15/99,501.36 = 45,294.16/x
  3. Step 3: Cross multiply
    72,149.15x = 99,501.36 × 45,294.16
  4. Step 4: Simplify right side
    72,149.15x = 4,506,830,520.06
  5. Step 5: Solve for x
    x = 4,506,830,520.06/72,149.15
  6. Step 6: Final answer
    x = 62,465.47

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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.